formula for circumference is 2(pi)(radius) therefore:
10=2(pi)(radius)
solving:
radius = 10 / (2 pi)
radius = 1.59
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A circle with a radius of 10 m has a circumference of 62.83 m.
A circle with a radius of 10 inches has a circumference of 62.8 inches.
If the circumference of a circle is 10 feet the radius is: about 1.592 feet. For this type of calculation, divide the circumference by Pi (about 3.1416). This gives you the diameter. Next, divide the diameter by two to get the radius.
Circumference = 2 x pie x radius Therefore, radius = 10/2/pie =1.6
If a circle circumference is 30 the radius is: 4.77