you multiply the diameter by pi.
Diameter = circumference/pi
circumference of a circle = pi * diameter.
3.14 * Diameter2
The diameter of a circle is directly proportionate to the circumference. You can find the diameter of a circle by dividing the circumference by the value of Pi (3.14) OR you can find the circumference by multiplying Pi by the diameter. it is a line that halves a circle
You can either measure it, or calculate it if you know the diameter (radius = diameter / 2), or the circumference (radius = circumference / (2pi)).
Circumference = Pi * diameter
circumference/pi = diameter
If you know the diameter and need the circumference you times the diameter of the circle by 3.14 also known as pie. That is how you get the circumference by only knowing the diameter. :)
Divide the known circumference by pi to find the diameter of the circle.
Diameter = circumference/pi
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
Multiply the diameter by pi (~3.14) to get the circumference.
If you know the circumference of a circle, you can find the radius by dividing the circumference by the value of Pi (3.14159...)
circumference of a circle = pi * diameter.
Pi X D = Circumference. To find Diamater if you know Circumference, divide Circumference by Pi (3.14).
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?
Divide the circumference by pi (pi = 3.14159 or rounded to 3.14 for rough approximation) to find the diameter of a circle.