Question

Find a if one angle of triangle is X
=90 and Y &Z=a

Answer 1

Answer:

X+Y+Z= 180

Step-by-step explanation:

90+a+a = 180

2a=90

a=45

Answer 2

Answer:

As we know the sum of all the angles of a triangle is 180°

Therefore, a+a+90°=180°

2a=90°

a=45°