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Proof of the angle sum of a triangle.
Author:
Lesley Skipper
Topic:
Angles
A proof that the angles in a triangle add to 180 degrees.
GeoGebra
New Resources
Advanced example 1: Colored circles
רישום חופשי
Untitled
Advanced example 2: Infinite curve
Tracing r = 2 cos(θ)
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CONSTRUCTION OF TANGENT TO A CIRCLE FROM A POINT OUTSIDE IT
Triangular Pyramid
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version_2
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