Question

If an angle is equal to its complementary angle , then angle is :

1) Acute angle
2) Right Angle
3) Obtuse Angle
4) Straight Angle​

Answer 1

Answer: 1)acute angle

Let two angles be x and y

complementary= x+y=90°

Here,x=y

x+x =90°

2x=90°

x=90°/2

x=45°

x=y=45°

Therefore , 45° is an acute angle