right angle


Definition of right angle 

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

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Other Words from right angle

right-angled \ˈrīt-​ˈaŋ-​gəld \ or right-angle \ˈrīt-​ˈaŋ-​gəl \ adjective

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.
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Recent Examples on the Web

Together, these two movements keep the femur, or thigh bone, situated in the pelvis at the right angle for the gluteus maximus to do its thing. K. Aleisha Fetters, SELF, "Why You Should Do Butt Exercises Before Your Next Run," 31 July 2018 With our without cuffs, Kirsch asks his clients to keep their elbows bent at a right angle. SELF, "A Quick Core-Burning Workout From Jennifer Lopez's Trainer," 26 Oct. 2018 Lifting your chin helps a lot with getting the right angle. Michelle Sulcov, Glamour, "I Went Through Monolid Bootcamp to Finally Learn How to Do a Smoky Eye," 30 Aug. 2018 But Rizzo’s leg clipped the right angle of Pirates catcher Elias Diaz, whose throw to first base sailed into right field and allowed two runs to score. Mark Gonzales, chicagotribune.com, "Official review determines Cubs' Anthony Rizzo guilty of interference," 29 May 2018 Tidy right angles abound, from the white metal struts that form a procession of columns, to the rectangular teller windows lining the room’s perimeter. Janelle Zara, WSJ, "A Masterpiece of Modernist Architecture? I Had My Doubts," 16 Mar. 2018 Pull the sponge lightly across each right angle once. The Editors Of House Beautiful, House Beautiful, "How to Grout Tile," 11 Feb. 2015 Bends’ in Pier The wings are not at right angles to the main pier. sandiegouniontribune.com, "July 2, 1966: Ocean Beach Pier Dedicated," 2 July 2018 Houses are all about right angles; pottery adds shapes and curves. Lisa Cregan, House Beautiful, "Gregory Shano on Decorating His Relaxed Long Island Retreat," 30 Mar. 2015

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'right angle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of right angle

15th century, in the meaning defined above

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Last Updated

2 Dec 2018

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Time Traveler for right angle

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

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More Definitions for right angle

right angle


English Language Learners Definition of right angle

: an angle formed by two lines that are perpendicular to each other : an angle that measures 90°

right angle


Kids Definition of right angle

: an angle formed by two lines that are perpendicular to each other : an angle of 90 degrees

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More from Merriam-Webster on right angle

Rhyming Dictionary: Words that rhyme with right angle

Spanish Central: Translation of right angle

Nglish: Translation of right angle for Spanish Speakers

Britannica English: Translation of right angle for Arabic Speakers

Britannica.com: Encyclopedia article about right angle

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to make faulty or ineffective

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