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# hypotenuse

[hahy-pot-n-oos, -yoos]
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noun Geometry.
1. the side of a right triangle opposite the right angle.

## Origin of .css-1fxfie5{font-size:22px;}@media (max-width:768px){.css-1fxfie5{font-size:18px;margin:0 10px 10px 0;word-break:break-all;word-wrap:break-word;-webkit-hyphens:auto;-moz-hyphens:auto;-ms-hyphens:auto;hyphens:auto;line-height:22px;}}hypotenuse

1565–75; earlier hypotenusa < Latin hypotēnūsa < Greek hypoteínousa (grámmē) subtending (line) (feminine present participle of hypoteínein to subtend), equivalent to hypo- hypo- + tein- stretch (see thin) + -ousa feminine present participle suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Examples from the Web for hypotenuse

### Historical Examples

• #### Therefore the square on the hypotenuse must equal the sum of these two squares.

The Teaching of Geometry

David Eugene Smith

• #### The area of a right triangle is 150 square feet, and its hypotenuse is 25 feet.

A Review of Algebra

Romeyn Henry Rivenburg

• #### Each of the other sides is the mean proportional between the hypotenuse and the segment of the hypotenuse adjacent to that side.

The Teaching of Geometry

David Eugene Smith

• #### If we take away the other two triangles instead, we have left the square on the hypotenuse.

The Teaching of Geometry

David Eugene Smith

British Dictionary definitions for hypotenuse

# hypotenuse

noun
1. the side in a right-angled triangle that is opposite the right angleAbbreviation: hyp

## Word Origin

C16: from Latin hypotēnūsa, from Greek hupoteinousa grammē subtending line, from hupoteinein to subtend, from hypo- + teinein to stretch
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

## Word Origin and History forhypotenuse

### n.

1570s, from Late Latin hypotenusa, from Greek hypoteinousa "stretching under" (the right angle), fem. present participle of hypoteinein, from hypo- "under" (see sub-) + teinein "to stretch" (see tenet). Formerly often erroneously hypothenuse.

Online Etymology Dictionary, © 2010 Douglas Harper

hypotenuse in Science

# hypotenuse

[hī-pŏtn-ōōs′]
1. The side of a right triangle opposite the right angle. It is the longest side, and the square of its length is equal to the sum of the squares of the lengths of the other two sides.