Meaning & use

right angle

noun·Academic

An angle of exactly ninety degrees, formed where two lines meet perpendicularly.

See it in a sentence

The corners of a standard sheet of paper each form a right angle.

Carpenters use a square tool to check that a joint forms a precise right angle.

A note on using this word

A right angle is often marked in diagrams with a small square symbol at the vertex instead of a curved arc.

Words with a similar meaning

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