Steps of construction:
1.Let’s Draw a line segment $AB=6cm$.
2. With B as a center and radius $6cm$, draw an arc with the help of compass.
3. With C as a center and radius $5.2cm$, draw another arc with the help of compass, cutting the previous arc at A.
4. Now Join AB and AC.
Then, $\vartriangle ABC$ is the required triangle.
5. With B as center and radius measuring more than half of BC, draw arcs with the help of compass ,on both sides of BC.
6. With C as center and the same radius as before, draw arcs with the help of compass ,on both sides of BC, cutting the previous arcs as shown. Join them.
7. Again with B as center and radius measuring more than half of BC, draw arcs with the help of compass on both sides of BC.
8. With A as center and the same radius as before, draw arcs with the help of compass on both sides of BC, cutting the previous arcs as shown. Join them.
9. With C as center and radius measuring more than half of BC, draw arcs with the help of compass , on both sides of BC.