College Math CLEP Prep Practice Exam

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How many degrees are in a right angle?

  1. 30

  2. 45

  3. 90

  4. 180

The correct answer is: 90

A) 30 and B) 45 are incorrect because they are both angles smaller than a right angle. D) 180 is incorrect because it is a straight angle, which is bigger than a right angle. A right angle is exactly half of a straight angle, which is why it is 90 degrees. Any other angle measurement would not make it a right angle.

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