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Definition of Right angle
1. Noun. The 90 degree angle between two perpendicular lines.
Definition of Right angle
1. Noun. (geometry) An angle of 90 degrees; the bisect of the angle formed by a single straight line. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Right Angle
Literary usage of Right angle
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Thirteen Books of Euclid's Elements by Euclid, Johan Ludvig Heiberg (1908)
"Then B is the cause of A, the right angle, being an attribute of C, ... 1051 a
26 : "Why is the angle in a semicircle a right angle invariably ..."
2. The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago by Robert Simson, Euclid (1838)
"IN a circle, the angle in a semicircle is a right angle; but the angle in a
segment greater than a semicircle is less than a right angle; and the angle in a ..."
3. The Cyclopædia;: Or, Universal Dictionary of Arts, Sciences, and Literature.by Abraham Rees by Abraham Rees (1819)
"Given one of the fides containing the right angle and the inclination or angle
adjacent, to find the remaining fide which contains the right angle. ..."
4. A Treatise on Conic Sections: Containing an Account of Some of the Most by George Salmon (1879)
"&y' be on the curve the equation reduces to L'S— 2LP=Q. Ex. A chord which subtends
a right angle at a given point on the curve passes through a fixed point ..."
5. Science by American Association for the Advancement of Science (1901)
"And the first, indeed, I will call hypothesis of right angle; the second, however,
and the third I will call hypothesis of obtuse angle, and hypothesis of ..."
6. The Encyclopedia Americana: A Library of Universal Knowledge (1918)
"An oblique angle is one which is not a right angle. An obtuse angle is that which
is greater than one right angle, but less than two. ..."
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