As we know that (x,y) is the mid-point $x=(3+k)/2$ and $y=(4+7)/2=11/2$ Also it is given that the mid-point lies on the line $2x+2y+1=0$ $2[(3+k)/2]+2(11/2)+1=0$ $3+k+11+1=0$ Thus, $k=-15$
Find the coordinates of the given point which divides the line segment joining $(-1,3)$ and $(4,β 7)$ internally in the ratio of $3:4$.
Letβs consider P(x, y) be the required point. By using section formula, we know that the coordinates are $x=\frac{m{{x}_{2}}+n{{x}_{1}}}{m+n}$ $y=\frac{m{{y}_{2}}+n{{y}_{1}}}{m+n}$ Here,...
Prove that the points $(3,2)$,$(4,0)$,$(6,-3)$ and $(5,-5)$ are the vertices of a parallelogram.
Letβs consider A$(3,-2)$, B$(4,0)$,C$(6,-3)$ and D$(5,-5)$ Letβs take P(x, y) be the point of intersection of diagonals AC and BD of ABCD. The mid-point of AC is provided that,...
Find the coordinates of the point where the diagonals of the parallelogram formed by joining the points $(-2,-1)$,$(1,0)$,$(4,3)$ and$(1,2)$ meet.
Letβs consider A$(-2,-1)$,B$(1,0)$,C$(4,3)$ and D$(1,2)$ are the given points. Letβs take P(x, y) be the point of intersection of the diagonals of the parallelogram formed by the given points. As We...
If P($9aβ2$,-b) divides the line segment joining A$(3a+1,-3)$ and B$(8a,5)$ in the ratio $3:1, find the values of a and b.
Given that, P($9aβ2$, -b) divides the line segment joining A$(3a+1,-3)$ and B$(8a,5)$ in the ratio$3:1$ Therefore, by using section formula The Coordinates of P are $9a-2=\frac{3(8a)+1(3a+1)}{3+1}$...
If (a, b) is the mid-point of the line segment joining the points A $(10,-6)$, B(k,$4$) and a$-2b=18$, find the value of k and the distance AB.
As it is given (a, b) is the mid-point of the line segment A($10,-6$) and B(k,$4$) Therefore, (a, b) $=(10+k/2,-6+4/2)$ a $=(10+k)/2$ and b $=-1$ $2a=10+k$ $K=2aβ10$ Given that, $aβ2b=18$ By Using...
Find the ratio in which the point ($2$, y) divides the line segment joining the points A$(-2,2)$ and B$(3,7)$. Also find the value of y.
Letβs consider the point P($2$, y) divide the line segment joining the points A$(-2,2)$ and B$(3,7)$ in the ratio k: 1 Now, the coordinates of P are given by $\left[ \frac{3k+(-2)\times...
If A$(-1,3)$, B$(1,-1)$ and C$(5,1)$ are the vertices of a triangle ABC, find the length of median through A.
Letβs consider AD be the median through A. As we know that, AD is the median and D is the mid-point of BC Therefore, the coordinates of D are $(1+5/2,-1+1/2)=(3,0)$ So, Length of median...
(i) At what ratio is the segment joining the points $(-2,-3)$ and $(3,7)$ divides by the y-axis? find out the coordinates of the point of division.(ii) At what ratio is the line segment joining $(-3,-1)$ and $(-8,-9)$ divided at the point $(-5, -21/5)$?
Letβs consider P$(-2,-3)$ and Q$(9,3)$ be the given points. Letβs Suppose we have the y-axis that divides PQ in the ratio k:$1$ at R($0$, y) So, the coordinates of R are as given below Now, on...
Show that A$(-3,2)$, B$(-5,5)$, C$(2,-3)$ and D$(4,4)$ are the vertices of a rhombus.
Given that the points are A$(-3,2)$, B$(-5,5)$, C$(2,-3)$ and D$(4,4)$ So, Coordinates of the mid-point of AC are $(-3+2/2,2-3/2)=(-1/2,-1/2)$ And, The Coordinates of mid-point of BD are...
Find the ratio in which the point P$(3/4,5/12)$ divides the line segments joining the point A$(1/2,3/2)$ and B$(2,-5)$.
Given that, Points A$(1/2,3/2)$ and B$(2,-5)$ Letβs consider the point P$(3/4,5/12)$ divide the line segment AB in the ratio k:$1$ As, we know that P$(3/4,5/12)=(2k+1/2)/(k+1),(2k+3/2)/(k+1)$...
Find the ratio in which the line joining $(-2,-3)$ and $(5,6)$ is divided by (i) x-axis (ii) y-axis. Also, find that the coordinates of the point of division in each case.
Letβs A $(-2,-3)$ and B$(5,6)$ be the given points. (i) Suppose that x-axis divides AB in the ratio k:$1$ at the point P Now, the coordinates of the point of division are $\left[...
Prove that the points $(4,5)$,$(7,6)$,$(6,3)$,$(3,2)$ are the vertices of a parallelogram. Is it a rectangle?
Letβs A$(4,5)$, B$(7,6)$,C$(6,3)$ and D$(3,2)$ be the given points. And, P be the point of intersection of AC and BD. Coordinates of the mid-point of AC are $(4+6/2,5+3/2)=(5,4)$ Coordinates of the...
Prove that $(4,3)$,$(6,4)$,$(5,6)$ and $(3,5)$ are the angular points of a square.
Letβs A$(4,3)$,B$(6,4)$,C$(5,6)$ and D$(3,5)$ be the given points. We know the distance formula is $D=\sqrt{{{({{x}_{1}}-{{x}_{2}})}^{2}}+{{({{y}_{1}}-{{y}_{2}})}^{2}}}$...
Prove that the points $(-4,-1)$,$(-2,-4)$,$(4,0)$ and $(2,3)$ are the vertices of a rectangle.
Letβs A$(-4,-1)$,B$(-2,-4)$,C$(4,0)$ and$(2,3)$ be the given points. Now we have, Coordinates of the mid-point of AC are $(-4+4/2,-1+0/2)$ =$(0,-1/2)$ Coordinates of the mid-point of BD are...
Find the length of the medians of a triangle whose vertices are A$(-1,3)$, B$(1,-1)$ and C$(5,1)$.
Letβs AD, BF and CE be the medians of ΞABC The Coordinates of D are $(5+1/2,1β1/2)$ $=(3,0)$ Coordinates of E are $(-1+1/2,3β1/2)$ $=(0,1)$ Coordinates of F are $(5β1/2,1+3/2)$ $=(2,2)$ Now, Finding...
Find out the ratio in which the line segment joining the points A $(3,-3)$ and B $(-2,7)$ is divided by x- axis. find the coordinates of the point of division.
Letβs the point on the x-axis be (x, $0$). [y β coordinate is zero] And, letβs this point divides the line segment AB in the ratio of k :$1$. Now by using the section formula for the y-coordinate,...
Find the ratio in which the point P(x, 2) divides the line segment joining the points A $(12,5)$ and B $(4,-3)$. Also, find the value of x.
Letβs P divide the line joining A and B and let it divide the segment in the ratio k:$1$ Now, by using the section formula for the y β coordinate we have $2=(-3k+5)/(k+1)$ $2(k+1)=-3k+5$...
Find the ratio in which the point P(-1, y) lying on the line segment joining A$(-3,10)$ and B$(6,-8)$ divides it. Also find the value of y.
Letβs P divide A$(-3,10)$ and B$(6,-8)$ in the ratio of k:$1$ Given that the coordinates of P as ($-1$,y) Now, by using the section formula for x β coordinate we have $-1=6kβ3/k+1$ $-(k+1)=6kβ3$...
If the points A$(2,0)$, B$(9,1)$, C$(11,6)$ and D$(4,4)$ are the vertices of a quadrilateral ABCD. Then Determine whether ABCD is a rhombus or not.
Given that the points are A$(2,0)$, B$(9,1)$, C$(11,6)$ and D$(4,4)$. Now Coordinates of mid-point of AC are $(11+2/2,6+0/2)=(13/2,3)$ Coordinates of mid-point of BD are $(9+4/2,1+4/2)=(13/2,5/2)$...
At what ratio does the point $(-4,6)$ divide the line segment joining the points A$(-6,10)$ and B$(3,-8)$?
Letβs the point $(-4,6)$ divide the line segment AB in the ratio k:$1$. Thus, by using the section formula, we have $(-4,6)=\left( \frac{3k-6}{k+1},\frac{-8k+10}{k+1} \right)$ $-4=\frac{3k-6}{k+1}$...
If we have the points $(-2,1)$,$(1,0)$,$(x,3)$ and $(1,y)$ form a parallelogram, then find the values of x and y.
Letβs A $(-2,1)$, B$(1,0)$, C$(x,3)$ and D$(1,y)$ be the given points of the parallelogram. As We know that the diagonals of a parallelogram bisect each other. Therefore, the coordinates of...
Find out the coordinates of a point A, where AB is the diameter of circle whose center is $(2,-3)$ and B is $(1,4)$.
Letβs the coordinates of point A be (x, y) If we have AB is the diameter, then the center in the mid-point of the diameter Thus , $(2,-3)=(x+1/2,y+4/2)$ $2=x+1/2$ and $-3=y+4/2$ $4=x+1$ and $-6=y+4$...
Find out the ratio in which the y-axis divides the line segment joining the points $(5,-6)$ and $(-1,-4)$. Also find the coordinates of the point of division.
Letβs P$(5,-6)$ and Q$(-1,-4)$ be the given points. Letβs the y-axis divide the line segment PQ in the ratio k: $1$ Now, by using section formula for the x-coordinate (as itβs zero) Now we have...
Find the value of k, if points $A(7,-2)$, $B(5,1)$ and $C(3,2k)$ are collinear.
Given, Points $A(7,-2)$, $B(5,1)$ and $C(3,2k)$ Given the area of$\vartriangle ABC$ is $=\frac{1}{2}\left\{ 7\left( 1-2k \right)+5\left( 2k+2 \right)+3\left( -2-1 \right) \right\}$...
Find the value of k if points $(k,3)$, $(6,-2)$ and $(-3,4)$ are collinear.
Assume $A(k,3)$, $B(6,-2)$ and $C(-3,4)$ be the given points. Given area of $\vartriangle ABC$is $=\frac{1}{2}\left\{ k\left( -2-4 \right)+6\left( 4-3 \right)+\left( -3 \right)\left( 3+2 \right)...
If (x, y) be on the line joining the two points $(1,-3)$ and $(-4,2)$. Prove that $x+y+2=0$
Assume $A(x,y)$, $B(1,-3)$ and $C(-4,2)$ be the given points. Given area of $\vartriangle ABC$ $=\frac{1}{2}\left\{ x\left( -3-2 \right)+1\left( 2-y \right)+\left( -4 \right)\left( y+3 \right)...
If the vertices of a triangle are $(1,-3)$, $(4,p)$ and $(-9,7)$ and its area is $15$ sq. units, find the value (s) of p.
Assume $A(1,-3)$, $B(4,p)$ and $C(-9,7)$ be the vertices of $\vartriangle ABC$ Given, area of $\vartriangle ABC=15$ sq.units $15=\frac{1}{2}\left| 1\left( p-7 \right)+4\left( 7+3 \right)-9\left(...
Prove that the points $(a,b)$, $\left( {{a}_{1}},{{b}_{1}} \right)$ and $\left( a-{{a}_{1}},b-{{b}_{1}} \right)$ are collinear if $a{{b}_{1}}={{a}_{1}}b$
Assume $A(a,b)$, $B\left( a_{1}^{{}},{{b}_{1}} \right)$and $C\left( a-{{a}_{1}},b-{{b}_{1}} \right)$ be the given points. So, given the area of $\vartriangle ABC$ $=\frac{1}{2}\left\{ a\left[...
For what value of a the points $(a,1)$, $(1,-1)$ and $(11,4)$ are collinear?
Assume, $A(a,1)$, $B(1,-1)$ and $C(11,4)$ be the given points Now the area of $\vartriangle ABC$is given by, $=\frac{1}{2}\left\{ a\left( -1-4 \right)+1\left( 4-1 \right)+11\left( 1+1 \right)...
If $A(-3,5)$, $B(-2,-7)$, $C(1,-8)$ and $D(6,3)$ are the vertices of a quadrilateral ABCD, find its area.
Now, join A and C. Then, we get $\vartriangle ABC$and $\vartriangle ADC$ Hence, The Area of quad. ABCD $=$ $ar\left( \vartriangle ABC \right)+ar\left( \vartriangle ADC \right)$ $=\frac{1}{2}\left|...
If $P(-5,-3)$, $Q(-4,-6)$, $R(2,-3)$ and $S(1,2)$ are the vertices of a quadrilateral PQRS, find its area.
letβs join P and R. Now, $\vartriangle PSR$area is given by $=\frac{1}{2}\left| -5\left( 2+3 \right)+1\left( -3+3 \right)+2\left( -3-2 \right) \right|$ $=\frac{1}{2}\left| -5\times 5+1\times...
Find the area of the triangle PQR with $Q(3,2)$ and the mid-points of the sides through Q being $(2,-1)$ and $(1,2)$.
Assume the coordinates of P and R be $\left( {{x}_{1}},{{y}_{1}} \right)$and $\left( {{x}_{2}},{{y}_{2}} \right)$ respectively. Then, assume the points E and F be the centers of PQ and QR...
In $\vartriangle ABC$, the coordinates of vertex $A(0,-1)$ and $D(1,0)$ and $E(0,1)$ respectively the mid-points of the sides AB and AC. If F is the mid-point of side BC, find the area of $\vartriangle DEF$.
Assume B(a, b) and C(p, q) be the other two vertices of the $\vartriangle ABC$ As, we know that D is the center of AB Then, coordinates of $D=(0+a/2,-1+b/2)$ $(1,0)=(a/2,b-1/2)$ $1=a/2$ and...
Find the area of a quadrilateral ABCD, the coordinates of whose vertices are $A(-3,2)$, $B(5,4)$, $C(7,6)$ and $D(-5,-4)$.
Join AC. So, we have formed two triangles Then, the $ar\left( ABCD \right)=ar\left( \vartriangle ABC \right)+ar\left( \vartriangle ACD \right)$ Area of $\vartriangle ABC$ is given by,...
Show that the following sets of points are collinear.(i) $(2,5)$, $(4,6)$ and $(8,8)$ (ii) $(1,-1)$, $(2,1)$ and $(4,5)$
Condition: For the 3 points to be collinear the area of the triangle formed with the 3 points has to be zero. (a) Assume $A(2,5)$, $B(4,6)$ and $C(8,8)$ be the given points Then, the area of...
The vertices of $\vartriangle ABC$ are $(-2,1)$, $(5,4)$ and $(2,-3)$ respectively. Find the area of the triangle and the length of the altitude through A.
Let $A(-2,1)$, $B(5,4)$ and $C(2,-3)$ be the vertices of $\vartriangle ABC$ And assume AD be the altitude through A. Area of $\vartriangle ABC$ is given by $=1/2|(-2)(4+3)β5(-3β1)+2(1β4)|$...
The four vertices of a quadrilateral are $(1,2)$, $(-5,6)$, $(7,-4)$ and $(k,-2)$ taken in order. If the area of the quadrilateral is zero, find the value of k.
Assume $A(1,2)$, $B(-5,6)$, $C(7,-4)4$and $D(k,-2)$ be the given points Firstly, area of $\vartriangle ABC$ is given by $=1/2|(1)(6+4)-5(-4+2)+7(2-6)|$ $=1/2|10+30-28|$ $=1/2\times 12$ $=6$ Now, the...
Find the area of the quadrilaterals, the coordinates of whose vertices are(iii) $(-4,-2)$, $(-3,-5)$, $(3,-2)$, $(2,3)$
Let $A(-4,2)$, $B(β3,β5)$, $C(3,-2)$ and $D(2,3)$ be the given points Firstly, area of $\vartriangle ABC$ is given by $=1/2|(-4)(-5+2)β3(-2+2)+3(-2+5)|$ $=1/2|(-4)(-3)β3(0)+3(3)|$ $=21/2$ then, the...
Find the area of the quadrilaterals, the coordinates of whose vertices are (i) $(-3,2)$, $(5,4)$, $(7,-6)$ and $(-5,β4)$ (ii) $(1,2)$, $(6,2)$, $(5,3)$ and $(3,4)$
Assume $A(-3,2)$, $B(5,4)$, $C(7,-6)$ and $D(-5,β 4)$ be the given points. Given area of $\vartriangle ABC$ $=1/2[-3(4 +6)+5(-6β2)+7(2β4)]$ $=1/2[-3.1+5.(-8)+7(-2)]$ $=1/2[-30β40-14]$ $=β 42$ So,...
Find the area of a triangle whose vertices are (iii) $(a,c+a)$, $(a,c)$ and $(-a,cβa)$
(iii) Let $A=\left( {{x}_{1}}{{y}_{1}} \right)=\left( a,c+a \right),B=\left( {{x}_{2}},{{y}_{2}} \right)=\left( a,c \right)=C=\left( {{x}_{3}},{{y}_{3}} \right)=\left( -a,c-a \right)$ be the given...
Find the area of a triangle whose vertices are(i) $(6,3)$, $(-3,5)$ and $(4,β 2)$ (ii) $\left[ \left( at_{1}^{2},a{{t}_{1}} \right),\left( at_{2}^{2},2at2 \right)\left( at_{3}^{2},2a{{t}_{3}} \right) \right]$
(i) Assume $A(6,3)$, $B(-3,5)$ and C(4,-2) be the given points As, we know that, area of a triangle is given by: \[1/2\left[ {{x}_{1}}\left( {{y}_{2}}-{{y}_{3}} \right)+{{x}_{2}}\left(...
If $(-2,3)$, $(4,-3)$ and $(4,5)$ are the mid-points of the sides of a triangle, find the coordinates of its centroid.
The directions of the centroid are just the normal of the directions of the vertices. So to track down the x facilitate of the orthocenter, include the three vertex x organizes and gap by three....
$A(3,2)$ and $B(-2,1)$ are two vertices of a triangle ABC whose centroid G has the coordinates $(5/3,-1/3)$. Find the coordinates of the third vertex C of the triangle.
The directions of the centroid are just the normal of the directions of the vertices. So to track down the x facilitate of the orthocenter, include the three vertex x organizes and gap by three....
Find the third vertex of a triangle, if two of its vertices are at $(-3,1)$ and $(0,-2)$ and the centroid is at the origin.
The centroid is the middle place of the item. The point in which the three medians of the triangle converge is known as the centroid of a triangle. It is likewise characterized as the mark of...
Two vertices of a triangle are $(1,2)$, $(3,5)$ and its centroid is at the origin. Find the coordinates of the third vertex.
The directions of the centroid are just the normal of the directions of the vertices. So to track down the x facilitate of the orthocenter, include the three vertex x organizes and gap by three....
Find the centroid of the triangle whose vertices are: (i) $(1,4)$, $(-1,-1)$ and $(3,-2)$ (ii) $(-2,3)$, $(2,-1)$ and $(4,0)$
As we know that the coordinates of the centroid of a triangle whose vertices are $\left( {{x}_{1}},{{y}_{1}} \right),\left( {{x}_{2}},{{y}_{2}} \right),\left( {{x}_{3}},{{y}_{3}} \right)$Are $\left(...
On which axis do the following points lie? (iii) $R(-4,0)$ (iv) $S(0,5)$
A diagram comprises of two tomahawks called the x (even) and y (vertical) tomahawks. These tomahawks compare to the factors we are relating. In financial aspects we will generally give the tomahawks...
On which axis do the following points lie? (i) $P(5,0)$ (ii) $Q(0,-2)$
A diagram comprises of two tomahawks called the x (even) and y (vertical) tomahawks. These tomahawks compare to the factors we are relating. In financial aspects we will generally give the tomahawks...