right triangle

noun

Definition of right triangle

: a triangle having a right angle — see triangle illustration

Examples of right triangle in a Sentence

Recent Examples on the Web

Since x and y are perpendicular to each other, these components form the sides of a right triangle. Rhett Allain, WIRED, "The Physics of Actually Flying Around in an Iron Man Suit," 18 June 2019 His theorem, a part of Euclidean geometry taught in many high school math classes, states that the hypotenuse of a right triangle (the side opposite the right angle) equals the sum of the squares of the other two sides. Kevin Kelleher, Fortune, "Stonehenge Builders Used Pythagoras' Theorem Centuries Before His Birth, Say Experts," 21 June 2018 So, when the side lengths of a right triangle are labeled a, b, and c, the Pythagorean theorem may be written as the equation a2 + b2 = c2. Joshua A. Krisch, Popular Mechanics, "A Pythagorean Party at the Flatiron Building," 6 Dec. 2013 If the two legs of a right triangle each have the same rational length, Hippasus is said to have shown, its hypotenuse cannot have a rational length. Quanta Magazine, "Mathematicians Shed Light on Minimalist Conjecture," 9 July 2013 Since x and y are perpendicular to each other, these components form the sides of a right triangle. Rhett Allain, WIRED, "The Physics of Actually Flying Around in an Iron Man Suit," 18 June 2019 If the two legs of a right triangle each have the same rational length, Hippasus is said to have shown, its hypotenuse cannot have a rational length. Quanta Magazine, "Mathematicians Shed Light on Minimalist Conjecture," 9 July 2013 So, when the side lengths of a right triangle are labeled a, b, and c, the Pythagorean theorem may be written as the equation a2 + b2 = c2. Joshua A. Krisch, Popular Mechanics, "A Pythagorean Party at the Flatiron Building," 6 Dec. 2013 Pythagorean triples are sets of numbers that correspond to the sides of right triangles. Avery Thompson, Popular Mechanics, "Researchers Discover Babylonian Tablet Is Ancient Trig Table," 25 Aug. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'right triangle.' 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 triangle

1675, in the meaning defined above

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Last Updated

24 Aug 2019

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The first known use of right triangle was in 1675

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More Definitions for right triangle

right triangle

noun

English Language Learners Definition of right triangle

US : a triangle that has a right angle

right triangle

noun

Kids Definition of right triangle

: a triangle having a right angle

More from Merriam-Webster on right triangle

Spanish Central: Translation of right triangle

Britannica.com: Encyclopedia article about right triangle

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