Cirxular cylinder 8in 4in 8 in use 3.14 for rt

To calculate the volume of the circular cylinder, we use the formula V = πr^2h, where r is the radius and h is the height.

Given that the radius (r) is 4 inches and the height (h) is 8 inches, we can substitute these values into the formula:

V = π(4)^2(8)
V = π(16)(8)
V = 128π cubic inches

Now, we can use an approximate value of π ≈ 3.14 to calculate the volume:

V ≈ 128(3.14)
V ≈ 401.92 cubic inches

Therefore, the volume of the circular cylinder is approximately 401.92 cubic inches.