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right triangle

a triangle having a right angle (contrasted with oblique triangle).
Origin of right triangle
1920-25 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for right triangle
  • The hypotenuse of a right triangle is not always the shortest distance between the two points that define it.
  • The cosine function is simply the ratio of the sides a and c in the diagram below of a right triangle.
  • Draw a right triangle with the given leg length on dot paper.
  • Students can do this, using the right triangle cutouts.
  • The hypotenuse is the longest side of a right triangle.
  • One leg of a right triangle exceeds the other leg by four inches.
  • Height can be measured using a number of devices, the simplest being a right triangle.
  • It is open at the top with a right triangle at each end.
  • They should also be able to perform calculations involving similar figures including right triangle trigonometry.
  • Knowing how to find the area of a right triangle extends to all right triangles.
British Dictionary definitions for right triangle

right triangle

(US & Canadian) a triangle one angle of which is a right angle Also called (in Britain and certain other countries) right-angled triangle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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right triangle in Science
right triangle  
A triangle having a right angle.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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right triangle in Culture

right triangle definition

A triangle that contains a right angle.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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