Measure the distance across the hole, and then divide this value by two. This is the hole’s radius. (Note: After obtaining measurements, remember to convert the units to feet.) Multiply the radius value by itself.
Besides, how do you find the volume of a round hole?
A hole is a cylinder, so to find the volume of a hole, calculate the volume of a cylinder. The volume of a cylinder is defined as the number of cubic units that will fill that cylinder. This formula is pi * radius squared * height = volume.
One may also ask, how do you find the circularity of a hole? To achieve this, a common measure of circularity is given by four times pi times the area divided by the perimeter squared: C = 4_pi_A/P^2 ~ 12.57_A/P^2, where C is the circularity, A is the area and P is the perimeter. For a circle, C = 1.
Subsequently, one may also ask, how do you determine the size of a circle?
The circumference = π x the diameter of the circle (Pi multiplied by the diameter of the circle). Simply divide the circumference by π and you will have the length of the diameter. The diameter is just the radius times two, so divide the diameter by two and you will have the radius of the circle!
What is the formula for calculating the area of a circle?
C = pi * d calculates the circumference (distance around the outside of the circle). D in the formula refers to the diameter which is the width of the circle. The formula for the area of a circle is A = pi * r * r where r is the radius (diameter / 2).