EmptyUpTriangle
 Usage
 \[EmptyUpTriangle]
Notes
• Letter-like form. • Used in geometry to indicate a triangle, as in the symbol  ABC. • Not the same as \[CapitalDelta] . • See Section 3.10.3 and Section 3.10.3. • See also: \[FilledUpTriangle] , \[EmptyDownTriangle] , \[RightTriangle] , \[Angle] .
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