Table of Contents
What is the circumference of a 4 cm diameter circle?
The circumference is 8πcm or 25.12cm .
What is the circumference of 6 cm diameter?
12π cm
Finding the Circumference: If r = 6 cm, the the circumference is c = 2π(6) = 12π cm, if writing in terms of π. If you prefer a numerical value, the answer rounded to the nearest tenth is 37.7 cm.
What is the area of a 4 inch circle?
Circumferences and areas of circles with diameters in inches.
| Diameter (in) | Circumference (in) | Area (in2) |
|---|---|---|
| 4 1/8 | 12.96 | 13.36 |
| 4 3/16 | 13.16 | 13.77 |
| 4 1/4 | 13.35 | 14.19 |
| 4 5/16 | 13.55 | 14.61 |
What is the area of the 4 cm circle?
The area of a circle is equal to Pi π times the radius r squared. Substitute in the value of the radius r=4 into the formula for the area of a circle. Pi π is approximately equal to 3.14 . Raise 4 to the power of 2 .
How to calculate the diameter of a circle?
This circumference to diameter calculator is used to find the diameter of a circle given its circumference. Just enter the value of the circumference. Then tap or click the Calculate button. Get the result. You can also select units of measure for both input data and results. The diameter of a circle will be shown in the selected units.
How to find the radius of a 10 cm circle?
To find the radius of a circle with a circumference of 10 centimeters, you have to do the following: Divide the circumference by π, or 3.14 for an estimation. The result is the circle’s diameter, 3.18 centimeters. Divide the diameter by 2. And there you go, the radius of a circle with a circumference of 10 centimeters is 1.59 centimeters.
What is the circumference of a circle called?
The circumference of a circle is the distance around the outside of the circle. It is like the perimeter of other shapes like squares. You can think of it as the line that defines the shape. For shapes made of straight edges this line is called the perimeter but for circles this defining line is called the circumference.
How is the perimeter of a circle defined?
Circumference or perimeter of a circle is defined as the distance around it. The diameter of a circle is the straight line passing through the center of the circle. It is also called as the longest chord of the circle. This online diameter to circumference converter helps you to find the perimeter value from the given diameter at desired units.