area of a circle= pi X D square/4 = 3.14 X 24 X24 /4 ==>452.16 sq m.
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The area is 452 m2
Circumference of a circle = 2*pi*radius or diameter*pi Its diameter = circumference/pi
area of a circle = pi*r^2 with pi being 3.1415926535..... that is the ratio between the diameter of the circle and it's circumference. r stands for radius (half the diameter if you didn't know) so for this circle to find the area all you have to do is 12 (half of 24 the diameter to find the radius) , then square it (144) then times it by pi which equals approximately 452.39 meters^2
First calculate the radius (1/2 of the diameter), then use the formula area = pi x r2.
If the object is a circle and if 24 is the diameter, the area is 452.39 and the circumference is 75.4