solid angle(redirected from Solid angle measure)
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An angle having a value equal to the area on a sphere subtended by a surface, divided by the square of the radius of that sphere. Solid angles are measured in steradians.
(Mathematics) a geometric surface consisting of lines originating from a common point (the vertex) and passing through a closed curve or polygon: measured in steradians
an angle formed by three or more planes intersecting in a common point or formed at the vertex of a cone.