# right angle

(redirected from*at a right angle*)

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## right angle

the angle between two radii of a circle that cut off on the circumference an arc equal in length to one quarter of the circumference; an angle of 90? or π/2 radians

## right angle

[′rīt ′aŋ·gəl] (mathematics)

An angle of 90°.

## right angle

An angle of 90°.

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