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Positon: Home Page > Products > Educational Equipment > Primary School Science > 30509 The circular area PI calculation formula dem
Detailed Product Description
● Plastic, φ200㎜, divided into circle area calculation formula and the calculation formula of PI two parts.
● The circle area demonstration consists of a 200mm diameter and it is divided into 17 equal parts.
● The circumference ration demonstration consists of a 100mm diameter circular wheel and a scale below the tray.
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