Circumference = pi x diameter = pi x 2 x Radius (By definition - Step 1)
So Radius = (Circumference)/(pi x 2), (find Radius - Step 2)
Area = pi x Radius x Radius, (substitute value or radius obtained in step 2)
To find the diameter of a circle, you will either need to know the area or its circumference. If you know the area: diameter = 2 x squareroot(area / Pi) If you know the circumference diameter = circumference / Pi
If you know the circumference of a circle, you can find the radius by dividing the circumference by the value of Pi (3.14159...)
radius = circumference/(2*pi)area = pi*radius2So Area in terms of Circumference is A = pi [C/2pi]2or (circumference)2/4 pi
circumference/pi = diameter
In a circle, the circumference and diameter vary directly. Which of the following equations would allow you to find the diameter of a circle with a circumference of 154 if you know that in a second circle the diameter is 14 when the circumference is 44?
To find the diameter of a circle, you will either need to know the area or its circumference. If you know the area: diameter = 2 x squareroot(area / Pi) If you know the circumference diameter = circumference / Pi
Divide its circumference by 2*pi which will give the radius of the circle. Area of the circle then is pi*radius squared
You dived the area by the circumference of the circle.
If you know the circumference of a circle, you can find the radius by dividing the circumference by the value of Pi (3.14159...)
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.
To find the circumference of a circle, you need only know the radius or diameter of the circle. The circumference of a circle is calculated as 2 x Pi x radius OR Pi x diameter. Pi is approximately 3.1415926.
The circumference of a circle is the length of the circle's perimeter.
radius = circumference/(2*pi)area = pi*radius2So Area in terms of Circumference is A = pi [C/2pi]2or (circumference)2/4 pi
Divide the known circumference by pi to find the diameter of the circle.
It depends on what you want to convert the area of the circle into.
Divide the area by pi, which gives you the square of the radius. Take the square root and multiply by 2 pi and you have the circumference.
By dividing its circumference by 2*pi will give the radius of the circle and its area = pi*radius2