Polar Triangles

Author:Jeremy Lyle, Steve Phelps

Every spherical triangle (ABC) has an associated polar triangle (DEF) formed by constructing a triangle using the poles of the sides (great circles) of the triangle.

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ANGLE
Proving Triangles Similar: Multistep Transformations
Proving Triangles Similar by Dilation
Angle Bisector: Quick Warm Up Questions
Tangent Plane to a Sphere

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Will it hit the hoop 2_2
Sample Notes
series ¼+...
IMO 1995/1
The Correlation Coefficient: IM Alg1.3.7

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Ratios
Arithmetic
Translation
Numbers
Rotation