Divide the circumference by 2pi(3.14). That will give you the radius.Square the radius and multiply by piThat will give you the area.Calculate the radius by dividing the circumference by 2pi. Then square the radius and multiply by pi to get the area.
The circumference of a circle is the length around it.
Multiplying the diameter by pi (approx 3.1416) will give you the circumference of the circle.
Will give the circumference of half of the circle.
Divide the circumference by pi, and that will give you the diameter.
Doubling the radius will give the diameter and times this by pi will give the circumference of the circle.
Divide the circumference by 2pi(3.14). That will give you the radius.Square the radius and multiply by piThat will give you the area.Calculate the radius by dividing the circumference by 2pi. Then square the radius and multiply by pi to get the area.
Divide the area by pi then square root your answer which will give the radius of the circle and use 2*pi*radius to find the circumference.
The circumference of a circle is the length around it.
Multiplying the diameter by pi (approx 3.1416) will give you the circumference of the circle.
We know that the area of a circle is pi * r2. We also know that the circumference of a circle is pi * d. Therefore, when you know the circumference of a circle and want to know the area, divide the circumference by pi to give you the diameter of the circle, divide the diameter by 2 to give you the radius, square the radius and then multiply by pi to get the area. So, 10/pi = 3.183. 3.183/2 = 1.5915. 1.59152 = 2.533 2.533 * pi = 7.958 to 3 decimal places. The area of your circle is therefore 7.958cm2.
Will give the circumference of half of the circle.
Divide the circumference by pi, and that will give you the diameter.
By dividing its circumference by 2*pi will give the radius of the circle and its area = pi*radius2
Divide its circumference by 2*pi which will give the radius of the circle. Area of the circle then is pi*radius squared
Divide the circumference by pi, and that will give you the diameter. Then take half of the diameter (the radius), and plug it into the formula for the area of a circle (A=πr²)
Divide the circumference by the value of Pi - that will give you the diameter.