Circumference of circle: 4*pi = 12.566 cm to 3 decimal places
Circumference ("perimeter") of a circle = (pi) x (diameter of the circle)
Diameter of a circle = circumference/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?
Multiply the diameter by Pi (about 3.1416). The result is the circle's circumference.
circumference of a circle = diameter*pi or 2*pi*radius
Circumference ("perimeter") of a circle = (pi) x (diameter of the circle)
The equation for finding the circumference of a circle is diameter times pi so reverse it to circumference divided by pi which leaves the diameter. The diameter is twice as big as the radius so divide the diameter by 2 and you will find the radius.
Diameter of a circle = circumference/pi
Divide the known circumference by pi to find the diameter of the circle.
To find the circumference of a circle the equation would be pi multiplied by diameter, or radius squared. the answer would be 31.415 units squared.
circumference/pi = diameter
diameter*pi = circumference
Diameter = circumference/pi
The circumference of a circle is found using the following formula: Circumference of a Circle = Pi x r2 So with these equation in mind we get the following problem. Circumference of a Circle = 3.14 x 14 Circumference of a Circle = 43.96 units
Divide the circumference by Pi to find the diameter.
To get the circumference of a circle first you have to find the diameter of the circle and multiply the diameter by Pi (3.14 in short). so it is the diameter * Pi.