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Circumference = 2 x π x radius
⇒ radius = circumference ÷ (2 x π)
So divide the circumference by 2 x π ~= 2 x 3.14 = 6.28
⇒ radius = 22 inches ÷ 6.28 ~= 3.5 inches.
As an approximation to π (the ratio between a circle's circumference and its diameter), the value 22/7 is sometimes used (to 2 decimal places 22/7 = 3.14 & π = 3.14). The circumference given as 22 inches suggests this approximation should be used:
22 ÷ (2 x 22/7) = 22 x 7/22 ÷ 2 = 7 ÷ 2 = 3.5
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What is the circumference of a 15 feet diameter circle?
47.14285714285714 radius = 1/2 of diameter radius=7.5 which is half of 15 using circumference of circle formula (2 * by pi * by radius) pi=22/7 2*22/7*7.5=47.14285714285714
Circumference of fitness ball with a 22 inch diameter?
Circumference = pi*d = 69 inches
What is diameter of 28 inch circumference?
To find the diameter of a circle with a circumference of 28 inches, we can use the formula C = πd, where C is the circumference and d is the diameter. Given that C = 28 inches, we can rearrange the formula to solve for d: d = C / π. Therefore, the diameter of a circle with a circumference of 28 inches is approximately 8.91 inches.
How do you find the circumference of a circle by using 22 over 7 as pi?
Multiply 22/7 by the diameter of the circle. Or 3.14
What is the surface area of a cricket ball with a 22cm circumference?
radius = 22/(2*pi) = 3.501408748 Surface area = 4*pi*3.5014087482 = 154.0619849 square cm
