153.94 sq. m.
radius = diameter/2 = 14/2 = 7meters
Formula: Area of circle = radius2 * pi=72 *
π
= 49
π
substitute pi = 3.1416
= 49 * 3.1416
= 153.94 sq. m.
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The area of a circle with a diameter of 9.4 m is: 69.4 m2
Diameter = 28 m => radius = 28/2 m = 14 metres. Then, area = pi*r2 = 615.75 sq metres.
The area would be 50.3 m2.
121 pi sqm
i think its 25.13 m! :)