plane angle
Americannoun
noun
"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012Etymology
Origin of plane angle
First recorded in 1820–30
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Definition 8 states, “A plane angle is the inclination to one another of two lines in a plane which meet one another and do not lie in a straight line.”
From Scientific American
A plane angle is the inclination to each other of two lines in a plane which meet each other and do not lie in a straight line.
From Project Gutenberg
If a solid angle be contained by three plane angles, any two of them are together greater than the third.
From Project Gutenberg
A solid angle is that which is made by more than two plane angles meeting in one point and not lying in the same plane, as the angle of a cube.
From Project Gutenberg
I have the following by me: The Geometric Base, 1825.—The theory of plane angles.
From Project Gutenberg
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.
