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MeasuredAngle \[MeasuredAngle]

FilledSmallSquare Letter-like form.

FilledSmallSquare Used in geometry to indicate an angle, as in the symbol ABC.

FilledSmallSquare See The Mathematica Book: Section 3.10.3.

FilledSmallSquare See also: \[Angle] , \[SphericalAngle] , \[RightAngle] .