Derivation Demonstration Model for Circular Area Pi Calculation Formula π HTM1007

The use of Derivation Demonstration Model for Circular Area Pi Calculation Formula π :
For primary school mathematics teaching, teaching circular area, pi calculation formula.

Material:
Environmentally friendly ABS material

Structure:
The circular area calculation formula derivation demonstration model is useful math tools which consists of 16 equally divided segments made of plastic, one of which is equally divided into 2 small pieces.The pi calculation formula derivation demonstration model consists of a 10 cm diameter round wheel with gears and a toothed ruler.

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