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ISEGORIABenjamin Haire
日本語

GEOMETRY / MENSURATION

See the formula change.

Visual formula guide PDF · 4 A4 pages

Triangle area

Slide the apex sideways. The area stays the same when the base and height stay fixed.

Triangle areaA triangle with adjustable base, perpendicular height and apex position.

The formula

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Lengths use arbitrary units. Areas use units²; volumes use units³. Solid figures use schematic projections. Readouts are rounded to three decimal places.