Question

ABC is a right angled triangle angle A= 90 degree and angle AB = AC find the value of Angle B and angle C

Answer 1

Given,

∠A = 90° and AB = AC

A/q,

AB = AC

⇒ ∠B = ∠C (Angles opposite to the equal sides are equal.)

Now,

∠A + ∠B + ∠C = 180° (Sum of the interior angles of the triangle.)

⇒ 90° + 2∠B = 180°

⇒ 2∠B = 90°

⇒ ∠B = 45°

Thus, ∠B = ∠C = 45°

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Answer 2

if AB=AC then it becomes isosceles triangle.
the measure of two angles are equal.
angleB=angleC
each angle measure is 45°
angleB=45°
angleC=45°