right angle

noun

: the angle bounded by two lines perpendicular to each other : an angle of 90° or ¹/₂ π radians

right-angled

ˈrīt-ˈaŋ-gəld 

adjective

or right-angle

ˈrīt-ˈaŋ-gəl 

Examples of right angle in a Sentence

A square has four right angles.

Hold the nail at a right angle to the board.

The two boards are joined at right angles to each other.

Recent Examples on the Web

Hilarious images from the Comedy Wildlife Photography Awards Marchetti’s photo shows the moment a red squirrel is entering its hide in the trunk of a tree, with its legs at right angles to the trunk. —Jack Guy, CNN, 11 Dec. 2024

The surface of his work presents like an architectural blueprint, full of right angles, clear lines and efficient use of space. —Rob Salkowitz, Forbes, 22 Nov. 2024

Everything in the apartment flows seamlessly together and the service area is the only element with right angles. —Nicolas Milon, Architectural Digest, 19 Nov. 2024

The crossover gate is located in Turn 4 and presents a serious hazard if a car hits it at just the right angle to cause carnage. —Bruce Martin, Forbes, 3 Nov. 2024

Word History

First Known Use

15th century, in the meaning defined above

Kids Definition

right angle

noun

: an angle whose measure is 90° : an angle whose sides are perpendicular to each other

right-angled

ˈrīt-ˈaŋ-gəld

adjective

or right-angle

-gəl