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Langley's Angle: Stage One
Author:
Andrew Stacey
Topic:
Angles
This is for exploring Langley's Angle Puzzle to see how the answer depends on the initial choices of angles.
GeoGebra
New Resources
Intercepts in 3D
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רישום חופשי
從邊長辨認四邊形
Forming Similar Triangles
Discover Resources
Construct a triangle given 3 points
The Reflection Triangle and Collinear Points
Horloge_rigolote1
Teaser 2787
Epicycloid
Example: Profit, AVC, MC
Discover Topics
Straight Lines
Rotation
Equations
Tangent Line or Tangent
Cylinder