Horse tied to a barn

Author:Karen Paik

This is not a complete one yet, but as you move point C up and down, the shape of the barn (rectangle) changes, and the circle excluding part of a rectangle is the area grazed.

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Average Value
函數的奇偶性
Billard V5.2 and V6
bewijs stelling van Pythagoras
函數的單調性

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Velocity- Time- Diagram
leftHandTrig_4_2a
Juggling in an equilateral triangle - route 1
Come Experiment!
Two Piggy Banks ซื้อขาย
Another Net of Dodecahedron APS

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Fractions
Cylinder
Natural Numbers
Sine
LCM and GCD