The most apparent signs and symptoms of a carotid artery blockage include a transient ischemic attack, bruit and a stroke, according to the National Heart, Lung, and Blood Institute.
Measure the length of the cylinder with a measuring tape. Multiply this measurement by the result obtained in the above step. (Example: if the length of your cylinder is 24 inches, then 24 x 113.04 = 2712.96 square inches) Divide the square inch volume of the cylinder by 1728 to get the cubic feet of the cylinder.
V = pi * 4 * r^3 / 3. For a circular cylinder, we need to know the length h of the cylinder and the diameter d of the circular cross section. Then the equation for the volume is pi times the diameter squared times the length divided by four; V = pi * d^2 * h / 4.