Question

angleA= angleB and angleC= 90° then find angleA and angleB​

Answer 1

Answer:

AB=AC

angle A =angle C

angle B=90 (Given)

In triangle A+B+C=180

A+C=90.

2A=90

A=45

SinA=Sin45=1/√2

Answer 2

Step-by-step explanation:

Let the ∠A = x as it equal to ∠B then Thier sum is 2x

Using the angle sum property

∠A + ∠B + ∠C = 180°

=> x + x + 90° = 180°

=> 2x = 180° - 90°

=> x = 90/2

=> x = 45°

Hence, ∠A = ∠B = 45° ans.