The circumference = 18.8 cm
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circumference = 2*pi*15.8 = 99.27432785 or 99.274 cm to 3 d.p.
The radius of a circumference is half of the diameter. To find the radius of a circumference with a length of 64cm, you need to divide the circumference by 2π (since the formula for the circumference of a circle is C = 2πr). So, the radius would be 64cm / (2π) ≈ 10.19 cm.
To find the circumference of a circle with a diameter of 6 feet, you first need to calculate the radius, which is half of the diameter. So, the radius would be 6 feet divided by 2, which equals 3 feet. The formula for the circumference of a circle is 2πr, where r is the radius. Therefore, the circumference of a circle with a 6-foot diameter would be 2 x π x 3 feet, which equals approximately 18.85 feet.
Circumference = pi*15.5 = 48.695 cm rounded to 3 dp
Circumference of circle: 2*pi*4.9 = 30.788 rounded to 3 decimal places