Question

The area of ​​a circle is 314 cm2

. If π = 3.14, then its diameter is:

Answer 1

20 CM is diameter
Radius 10cm

Answer 2

Diameter is 20 cm

Step-by-step explanation:

Area of circle is calculated by the formula Pi*(Radius*Radius)

Since, the given area is 314 cm2.

Radius can be found by putting the value in the above mentioned formula.

314= $\pi$*(Radius*Radius)

314=3.14*(Radius*Radius)

Radius*Radius=314/3.14

Radius=$\sqrt{314/3.14}$

Radius= 10

Hence diameter= Radius*2

Diameter = 20

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