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EmptyUpTriangle \[EmptyUpTriangle]

FilledSmallSquare Letter-like form.

FilledSmallSquare Used in geometry to indicate a triangle, as in the symbol ABC.

FilledSmallSquare Not the same as \[CapitalDelta].

FilledSmallSquare See Section 3.10.3 and Section 3.10.3.

FilledSmallSquare See also: \[FilledUpTriangle] , \[EmptyDownTriangle] , \[RightTriangle] , \[Angle] .