GEOMETRY & THEOREMS

▸ Stretching the Euclidean coordinate grid…
▸ Building a right triangle & three squares
▸ Inscribing/circumscribing regular polygons on a circle
▸ Cutting the circle into wedges and reassembling
▸ Folding the three triangle angles into a straight line…
▸ Ready — Online. ✅
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⌂ Mathematics

Simulation room Geometry & theorems

Geometry
Online
proof by animated picture
Thumbnail & measurements
📐 Pythagorean theorem
figure & value
Tip
Every theorem here is proved by an animated picture: drag the sliders to see why the identity always holds — areas fit together, angles fold into a straight line, polygons squeeze toward the circle.
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Drag the sliders on the right = change the figure & measurements · pick a mode to see each theorem
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Value converging with the parameter estimatetrue value