Question

Bobby says that your friend Suzie answered the question incorrectly! He says she can't figure out the measure of angle A because you don't know the measures of the other two angles in the triangle. Defense suzie by explaining why her answers is correct.

Suzie says the measure of angle A is 45 degrees.

Answer 1

The triangle given is a right triangle with 90° as one of its angles.

Suzie is correct.

Defend suzie by explaining why her answers is correct?

The given triangle is a right triangle which has one of its angles as 90°

Given that angle B = 90°

Angle C = 45°

Angle A + Angle B + Angle C = 180°

.

Angle A + 90° + 45° = 180°

Angle A + 135° = 180°

Angle A = 180° - 135°

Angle A = 45°

Therefore, Suzie is correct.