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Upside Down?
Author:
Anthony OR 柯志明
Topic:
Circle
A coin is rolling around another fixed identical coin without slipping. If the coin starts with the head up, is the coin head up or down when it is directly opposite to its starting position, as indicated by the dotted circle?
GeoGebra
New Resources
bewijs stelling van Pythagoras
Daddy Long-Legs
Long Division with Feedback (v1)
Long Division Blank Template: Max 5 Steps
Copia de Example to show how to keep constant 1:1 ratio on resize
Discover Resources
Demo
Horizontal Ellipse
Projection of Vectors
CIRCLES 8
Luas Segitiga
Discover Topics
Similar Triangles
Step Functions
Centroid or Barycenter
Geometric Distribution
Function Graph