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Eratosthenes Earth
Author:
cpkear
5,000 stadia = about 500 miles
His error would have been less than 2 percent off the actual Earth’s circumference of 24,860 miles
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GeoGebra Script: Rotating circles
z`]]
Approximating the Length of Curves in 3D
Golden Dragon and Icosahedron
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Position_value
Adjacent angles
hennagraph2
a line tangent to circumcircle of a triangle at 1 of its ver
HamlatzaPartD2d
Unit Cone/Ellipse - Dynamic Model / Learning Tool
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Fractal Geometry
Perimeter
Derivative
Step Functions
Percentages