Answer:
40m
Explanation:
if 20 it the diameter then the daius is 10 which is multiplied by 4
100pi m or approximately 314 m^2
We need to find the radius to find the area
r = d/2 = 20/2 = 10
The area of a circle is
A = pi r^2
A = pi (10)^2
A = 100 pi m^2
If we approximate pi by 3.14
A = 100*3.14
A = 314 m^2
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