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How many Angles can you see?
Author:
AngleTasks
Topic:
Rotation
How many angles do these figures have? How do you know?
GeoGebra
New Resources
A note on Erdős’s mysterious remark
Experiments with Transformations in the Plane
Flip 4 Coins
以竹簽拼砌三角形
Flip 9 Coins
Discover Resources
old construction of hyp circles in pdisk
Parallel Lines Questions
Train Station
angle bisector
A tangent line to a circle
Discover Topics
Boxplot
Piecewise Functions
Similarity Transformation or Similarity
Continuity
Root