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Radius is half of the diameter, so you can easily come up with a formula:

L = 0.25 * pi * d2

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16y ago

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Related Questions

What is diameter of a 130mm circumferance?

To find the diameter of a circle given its circumference, you can use the formula: diameter = circumference / π. In this case, the circumference is 130mm. So, the diameter would be 130mm / π ≈ 41.34mm.


What is the formula to find the circumference of a circle with the diameter given?

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What is the formula to find volume when diameter and length are given?

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Find the circumference when the diameter is 84cm?

To find the circumference of a circle when given the diameter, you can use the formula C = πd, where C is the circumference, π is pi (approximately 3.14159), and d is the diameter. Given the diameter of 84cm, you can plug this into the formula to get C = 3.14159 * 84 = 263.893cm. Therefore, the circumference of the circle is approximately 263.893cm.


What is the diameter if the circumference is 84?

To find the diameter of a circle when given the circumference, you can use the formula: circumference = π * diameter. Given a circumference of 84 units, you can plug this value into the formula and solve for the diameter. Dividing 84 by π gives you approximately 26.67 units as the diameter of the circle.


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