What type of angle measures less than 90°?

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Multiple Choice

What type of angle measures less than 90°?

Explanation:
An angle that measures less than 90° is classified as an acute angle. Acute angles are characterized by their sharpness, appearing narrow compared to angles of greater size. For instance, angles that measure 1° to 89° fall within this category. On the other hand, an obtuse angle measures more than 90° but less than 180°, which distinguishes it from acute angles. A straight angle is exactly 180°, while a right angle measures exactly 90°. Therefore, given that the question specifically states the measurement is less than 90°, acute angle is the appropriate and correct classification.

An angle that measures less than 90° is classified as an acute angle. Acute angles are characterized by their sharpness, appearing narrow compared to angles of greater size. For instance, angles that measure 1° to 89° fall within this category.

On the other hand, an obtuse angle measures more than 90° but less than 180°, which distinguishes it from acute angles. A straight angle is exactly 180°, while a right angle measures exactly 90°. Therefore, given that the question specifically states the measurement is less than 90°, acute angle is the appropriate and correct classification.

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