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.
Thorough, covered the right angles, and in particular Bobby's emotional impact on the team. Eric Nehm, The Athletic, 21 Feb. 2025 This stand is adjustable to get the right angles and fits both cellphones and tablets. Bestreviews, The Mercury News, 3 Feb. 2025 Alternatives like cross—laminated timber—made by gluing together layers of wooden panels at right angles—are quickly gaining popularity and can resist both fire and earthquakes well, says Raskin. Natalie Donback, TIME, 17 Feb. 2025 The rules of the problem, which Canadian mathematician Leo Moser first formally posed in 1966, involve a rigid shape—so the cushions don’t yield when pressed—turning a right angle in a hallway. Jack Murtagh, Scientific American, 4 Feb. 2025 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

Browse Nearby Words

Cite this Entry

“Right angle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/right%20angle. Accessed 12 Mar. 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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