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Earn +20 ptsQ: Why do you need to know about circumference?
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Why would you need to find the circumference of a circle?
As for example when constructing a round-about on a road you'll need to know its perimeter which is the circumference of a circle.
What is a situation where you would need to know the circumference of a circle?
The circumference of a circle would be needed as for example when constructing a circular swimming pool.
If you know the circumference what is the radius?
Circumference is calculated by 2pr So if you know the circumference, divide by 2, and then divide by p That answer will be the radius
How do you find the diameter of a circle if you dont know the circumfrince?
you do not need to know the circumference to find the diameter. You just need to measure one side of the circle to the other .
Can the cumference of a circle be found?
Yes. you need to know the diameter or radius of the circle and then the formula is:- Circumference = Pi*Diameter or Circumference = 2Pi*Radius. An approximate value for Pi is 3.14159.
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