To measure the circumference of a circle The diameter is a straight line that goes from one side of the circle to the other and passes through the center, so the radius is half the measurement of the diameter.
To find the circumference of a circle it is diameter x 2 is equal to pi and the value of pi is always 3.141592. So the answer to this question is 314 inches.
The circumference is the measurement of a circle. There are different reasons why you may need to calculate the circumference of a circle in real life. If you wanted to know the area of a pizza besides knowing that it is small, medium or large, also, the pizza might say that it is nine inches. However, this measures the inches around the pizza and not the whole amount of inches on the inside of the pizza.
Therefore, you will need to know the circumference of it. To do that, you will need to know the diameter or radius of the circle. Then use the formula C = 2 (3.14) (r). Therefore if you plug in the numbers, you would get 314 inches.