Angle - Wikipedia, the free encyclopedia ... 360° = 2π rad = 400 gon = 4 rightangles. The right angle is 1/4 of a full circle. ... Angles smaller than a right angle (less than 90°) are called acute angles ...
http://en.wikipedia.org/wiki/Angle
Angles and angle terms Geometry help with angles, angle terms, and basic angle concepts. ... RightAngles. A right angle is an angle measuring 90 degrees. ...
RightAngles Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. ... All the angles below are rightangles: ...
http://www.mathsisfun.com/rightangle.html
Angles - Acute, Obtuse, Straight and Right Right Angle. an angle that is 90° exactly. Obtuse Angle ... so when naming the angles make sure. that you know which angle is being asked for! ...
Angles ... to angles which covers naming angles, angle size, measuring angles and types of angles. ... Note that a right angle is marked on the diagram as a small square. ...
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angle: Definition, Synonyms from Answers.com angle intr.v. , -gled , -gling , -gles . To fish with a hook and line. ... Two angles that add up to a right angle are complementary. ...