Question

28. ABC is a right angled triangle, in which LA = 90°, and AB-AC find LB and LC​

Answer 1

We know that angles opposite to equal sides are equal.

So, if AB = AC, then ∠B = ∠C

Now, ∠A + ∠B + ∠C = 180°

90° + ∠B + ∠C = 180°

∠B + ∠C = 90°

∠B + ∠B = 90°

2 ∠B = 90°

∠B = 45°

So, ∠B = 45° and ∠C = 45°