right angle

noun

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

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Message relevant journalists with the right angle and follow up well. Jodie Cook, Forbes, 16 Jan. 2025 Glass windows form a right angle around the dining area, providing generous light and views to the water. Lana Bortolot, New York Times, 10 Jan. 2025 Finding the right angle is crucial to avoid direct eye exposure while ensuring sufficient light coverage. L.a. Hubilla, People.com, 8 Jan. 2025 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 See all Example Sentences for right angle 

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of right angle was in the 15th century

Dictionary Entries Near right angle

Cite this Entry

“Right angle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/right%20angle. Accessed 23 Jan. 2025.

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

More from Merriam-Webster on right angle

Last Updated: - Updated example sentences
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