16 Equal Division Area Demonstrator Pi Calculation Formula Derivation Model HTM1006 (Watch Video Below)

16 Equal Division Area Demonstrator Pi Calculation Formula Derivation Model,made of quality PVC material with strong magnets on the back,dia 20cm,can be opened and spliced into rectangles, each with a strong magnetic nail on the back. Can be sucked onto the blackboard, intuitive and convenient, it’s an essential math tools for school math teaching.

Model No.:HTM1006

(Youtube Video) 16 Equal Division Area Demonstrator Pi Calculation Formula Derivation Model HTM1006

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