Question

If sin A = cos A, the measurement of angle A is ______.

Options

• 0°

• 30°

• 45°

• 60°

Answer 1

If sin A = cos A, the measurement of angle A is 45°.

Explanation:

For an acute angle, sin A = cos A

when A = 45°

since sin 45° = cos 45° = \[\frac{1}{\sqrt{2}}\]