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Classifying Quadrilaterals

Author:
Jill Alsman, Anthony OR 柯志明
Topic:
Quadrilaterals
Classify quadrilaterals A to T by coloouring. (Click a quadrilateral at the right, then click those quadrilaterals A to T in the same class.) Drag and rotate (the red point) the ruler to measure lengths and right angles. Once completed take picture/screen shot.

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