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How to calculate and formula the perimeter and area of the garden in the fifth grade of Mathematics People's Education Edition?
Circumference = diameter x pi =3. 14X diameter

Area of circle = square of radius xπ= radius x radius X3. 14

As we all know, the diameter of a circular garden is 20 meters. What is its circumference and area?

20x3.14 = 62.8m.

Radius =20÷2= 10

10x10x3.14 = 314 (m2)

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