Question

please answer my question very urgent question number 7

Answer 1

Answer is 45
As A is 90 and AB=AC they both will have the same angle and
Therefore 90+x+x=180(sum of angles of a triangle)
90+2x=180
2x=90
X=45
Where x =(angles)B and C....
Hope this helps you...

Answer 2

Given

/_ A = 90°

AB = AC

let /_ B = x and /_ C = x

Sum of angles = 180°

/_ A + /_ B + /_ C = 180°


90 + x + x = 180

90 + 2x = 180

2x = 180 - 90

x = 90/2

x = 45°

Hence , /_ B = 45°

/_ C = 45°