Question

$In\Delta ABC,\angle C=\angle A,\text{BC = 4 cm and AC = 5 cm. Then, AB =?}\text{(a) 4 cm (b) 5 cm (c) 8 cm (d) 2.5 cm}$

Answer 1

We know that sides opposite to equal sides are equal.

Since, $\angle C=\angle A$,

$\Rightarrow AB=BC$. [Since, sides which are opposite to equal sides]

Hence, $AB=BC=4cm$.

Therefore option (a) is correct.