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Pi by definition is simply the ratio C/D = pi where C = 62.8 in and D = 20 in. Plug in the numbers and you can get a value out as far in decimal points as you wish. And that's pi, not an approximation of pi.

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Duane Anymouse

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2y ago
This answer is:
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Math Wiz

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2y ago
Thanks
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Duane Anymouse

Lvl 1
2y ago
NOTE: If the pi you get above is not true pi then C, D, or both are not valid values.

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Q: The circumference of circle P is 62.8 inches, and the diameter is 20 inches. What expression represents an approximation for pi?
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Related questions

What is the ralationship between circumference and diameter?

The circumference of a circle is the diameter times pi (approximation 3.14159265)


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Divide the circumference by 3.14159265 (3.14 for rough approximation) to find the diameter of a circle.


Find diameter from circumference?

Divide the circumference by 3.14159265 (3.14 for rough approximation) to find the diameter of a circle.


How do you find the diameter when you have the circumference?

Divide the circumference by 3.14159265 (3.14 for rough approximation) to find the diameter of a circle.


How do you find the diameter if you have the circumference?

Divide the circumference by 3.14159265 (3.14 for rough approximation) to find the diameter of a circle.


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Divide the circumference by 3.14159265 (3.14 for rough approximation) to find the diameter of a circle.


What is the formula for the diameter of a circle given the circumference?

diameter = circumference/pi (pi = 3.14159265 or 3.14 for rough approximation).


How do you work out the diameter if you have the circumference of a circle?

Divide the circumference by 3.14159265 (3.14 for rough approximation) to find the diameter of a circle.


How do you get the circumference of a cicle knowing only the diameter?

circumference = diameter x pi (pi = 3.14159265 or 3.14 for rough approximation)


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11 is a good approximation of the diameter. If the circumference is 35, the actual diameter is about 11.14 (35/3.1416).


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How do you find the diameter when you know the circumference?

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