Altitudes In A Triangle

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Illustration used to show “The altitudes of a triangle are concurrent.”

Keywords

geometry, lines, height, line, perpendicular, altitude, altitudes, orthocenter, perpendiculars, orthocenters

Galleries

Geometric Theorems and Proofs

Source

C.A. Hart, Daniel D. Feldman Plane and Solid Geometry (New York, NY: American Book Company, 1911)

Downloads

TIFF (full resolution)

2400×1736, 212.9 KiB

Large GIF

1024×740, 27.2 KiB

Medium GIF

640×462, 15.9 KiB

Small GIF

320×231, 7.0 KiB