What Is a Straight Angle?

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What Is a Straight Angle? (The Lesson)

An straight angle is an angle of 180°.

A straight angle is a half of a revolution.

straight angle

Dictionary Definition

The Oxford English Dictionary defines a straight angle as "an angle of 180°."

Real Examples of Straight Angles

The angles below are all straight angles:

a straight angle of 180 degrees
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See Also

What are degrees? What are supplementary angles?