Investigate_angle sum of a quadrilateral

Author:Fathima G, amylava

Students move the points around to investigate the angle sum of a quadrilateral. There is also an option to show whether the quadrilateral is convex or concave.

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函數的奇偶性
Neuberg's Theorem
Prism Drawn in 2-Point Perspective
Untitled
Slope Between 2 Points (Phase 2)

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logisticfunction2
Aire sous la courbe de la fonction carrée
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AB + 2CD
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Optimization Problems
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Unit Circle
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