To calculate the volume of a concrete cylinder, you can use the formula for the volume of a cylinder:
V = πr²h
Where:
– V is the volume
– π (pi) is approximately 3.1416
– r is the radius of the cylinder
– h is the height of the cylinder
Given the diameter of the cylinder is 4 inches, the radius (r) is half of the diameter, which is 2 inches. The height (h) is 8 inches.
Plugging these values into the formula:
V = π(2)²(8)
V = 3.1416 × 4 × 8
V = 3.1416 × 32
V ≈ 100.5312 cubic inches
So, the volume of the concrete cylinder is approximately 100.53 cubic inches.