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Remember the circle equations.
A = pi r^2
C = 2 pi r = pi d ( Hence d = 2r)
Algebraically rarranging
r = sqrt(A/pi)
2r = d = 2(sqrt(A/pi))
Hence
d = 2(sqrt(28.26 / 3.141592...))
d = 2(sqrt(8.99543....)
d = 2(2.999239...)
d = 5.99847.... ~ 6 The answer!!!!!
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What is the radius of a circle with an area of 2826?
the formula for the area of a circle is pi times r squared (sorry this website does not work today for presenting this better) so 2826 = pi times r squared so dividing through on both sides bi pi gives you: 2826 divided by pi = r squared so r is the square root of (2826/ pi) 2826/pi = 899.5437384 so r is the square root of 899.5437384 = 29.99239468 r = 29.99 (to 2 decimal places)
What is the area of a circle with the diameter of 3m?
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What is the area of a circle with diameter of 4.9?
The area of a circle with diameter of 4.9 is 75.43 units2
How do I figure the area of a circle by diameter?
To find area of a circle using diameter, you use this formuler. Area=pi(diameter/2)(diameter/2)
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