California Assessment of Student Performance and Progress (CAASPP) Math Practice Exam 2025 - Free CAASPP Math Practice Questions and Study Guide

Question: 1 / 400

If an angle measures 90°, what type of angle is it?

Acute angle

Obtuse angle

Right angle

An angle that measures exactly 90° is classified as a right angle. This definition is crucial in geometry and is one of the foundational concepts when dealing with different types of angles. Right angles are often indicated in diagrams with a small square placed at the vertex of the angle, signifying that the angle measures 90°.

In contrast, acute angles measure less than 90°, while obtuse angles measure more than 90° but less than 180°. A straight angle is defined as an angle that measures exactly 180°, forming a straight line. The unique characteristic of a right angle is its precise measurement of 90°, making it distinct from other types of angles.

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Straight angle

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