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(geometry) solid angle (three-dimensional analog of an angle)
The solid angle is a measure of the amount of flux emanating from a source in three-dimensional space.
(geometry) spherical angle
The spherical angle is a measure of the opening between two arcs on a sphere.
plural of angle sphérique
Spherical angles are used in astronomy to measure the positions of stars.
(geometry) straight angle (an angle that is equal to 180° (pi radians or two right angles))
A straight angle measures 180 degrees.
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