California Assessment of Student Performance and Progress (CAASPP) Math Practice Exam

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Prepare for the CAASPP Math Exam. Use quizzes, flashcards, and detailed explanations to boost your confidence and test readiness. Master the skills necessary to excel in your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which angle measures exactly 90 degrees?

Obtuse angle
Acute angle
Right angle
Straight angle

The correct answer is: Right angle

A right angle is defined as an angle that measures exactly 90 degrees. This is a fundamental concept in geometry, where angles are classified based on their measures. A right angle is critical in various applications, such as construction and design, as it represents the point of perpendicularity, where two lines intersect at a perfect square corner. Obtuse angles measure more than 90 degrees but less than 180 degrees, making them larger than a right angle. Acute angles, on the other hand, measure less than 90 degrees. Straight angles are exactly 180 degrees, representing a straight line. Understanding these distinctions helps clarify why a right angle, measuring precisely 90 degrees, stands out as the correct answer.