Chapter 12, Problem 3PSQ

To determine

To classify: The angle as acute, right, obtuse, or straight.

Answer to Problem 3PSQ

The angle ${90}^{\circ }$ is a right angle.

Explanation of Solution

Given information: ${90}^{\circ }$

Calculation: As we know, In the geomet5ry and trigonometry an angle of exactly ${90}^{\circ }$ is known as a right angle.

Hence, The angle ${90}^{\circ }$ is a right angle.