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

Answer 1

Divide the circumference by pi, divide the result by 4, and finally, multiply the result by the original circumference.

Ex. The circumference of a circle is 43.96 units long. What is the area of the circle? (use 3.14 as pi).

Solution: First, divide 43.96 by pi, which is 3.14 in this question. The result should be 14. Next, divide 14 by 4,getting 3.5. Finally, multiply 3.5 by the original circumference, which was 43.96, and the final result should be 153.86.

The answer to the example is 153.86 square units.

Answer 2

area=A=Pixr2

So if you know A you can divide by Pi and you have the radius squared. Next, take the square root of that and you have the radius.

Let's call the raidus, r.

Now take are and multiply is by 2Pi and you have the circumference.

Answer 3

Take the area, divide by pi, get the sqare root of that number, multiply by 2, multiply by 3.14

Answer 4

If you mean a circle, first find out the radius (circumference = 2 x pi x radius, so you divide the circumference by 2 and by pi).

Answer 5

You can not find the circumference when only area is given. you need other details relating to shape. minimum parameter should be provided to find the required parameter.

Answer 6

To calculate circumference you find a circles radius or diameter. you do diameter times pi or radius times 2 times pi. Then you get the circumference.