FTCE General Knowledge Math Practice Test 2025 - Free Practice Questions and Study Guide

Question: 1 / 400

Which angle measures less than 90°?

Obtuse angle

Right angle

Acute angle

An acute angle is defined as an angle that measures less than 90 degrees. This unique property makes it distinct from other types of angles. Obtuse angles measure more than 90 degrees, right angles are exactly 90 degrees, and straight angles measure exactly 180 degrees. Therefore, the acute angle clearly stands out as the only option that fits the criteria of being less than 90 degrees.

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Straight angle

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