right-angled triangle
Britishnoun
Example Sentences
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You may be familiar with Pythagoras from his Pythagorean theorem, a key principle in geometry establishing a relationship between the sides of a right-angled triangle.
From Textbooks • Jun. 15, 2022
Keith Davis wrote a widely-used management textbook in 1957 that illustrated the theory in the form of a series of steps in a right-angled triangle leading to a peak.
From Scientific American • Apr. 27, 2019
It is a variation of the basic principle that if you know one angle and one side of an equilateral or right-angled triangle, then you can determine the other angles and sides.
From "The Invention of Science" by David Wootton
Pythagoras had learned the triangle theorem—that the length of the third side of a right-angled triangle can be deduced mathematically from the length of the other two sides—from Indian or Babylonian geometers.
From "The Gene" by Siddhartha Mukherjee
Every reader should know that if we take any two numbers, m and n, then m2 + n2, m2 - n2, and 2mn will be the three sides of a rational right-angled triangle.
From The Canterbury Puzzles And Other Curious Problems by Dudeney, Henry Ernest
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
