The formula for circumference of a circle is C = Pi x D where Pi is 3.1416 and D is the diameter. Using the formula: C = Pi x D C = 3.1416 x 63 C = 1979.208
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circumference is π*d. In this case it is 8π feet ≈ 8 * 3.1416 ≈ 25.1327 feet■
If d=12 then the circumference is about 37.7 (Pi*d=C)
to find the circumference of any circle, times the diameter(d) by pi and you will get the answers.
Given a diameter d, the circumference of a circle is Pi*d. Thus the circumference is Pi times larger than the diameter.
Circumference = pi*d = 37.7 yards, approx.