Given that, \[\Delta \text{ }ABC\]has been enlarged by scale factor \[m\text{ }of\text{ }2.5\text{ }to\text{ }\Delta \text{ }ABC\]
(i) \[AB\text{ }=\text{ }6\text{ }cm\]
So,
\[AB\left( 2.5 \right)\text{ }=\text{ }AB\text{ }=\text{ }6\text{ }cm\]
\[AB\text{ }=\text{ }2.4\text{ }cm\]
(ii) \[CA\text{ }=\text{ }4\text{ }cm\]
Hence,
\[CA\left( 2.5 \right)\text{ }=\text{ }CA\]
\[CA\text{ }=\text{ }4\text{ }x\text{ }2.5\text{ }=\text{ }10\text{ }cm\]