How To Find Radius Of Cylinder. Thus, the equation to calculate the radius (r) of a cylinder = √v/πh, here v = volume, π = 22/7 = 3.141, h = height. The radius of a cylinder (r) = √ (v / π × h), where v is the volume of a cylinder, h is the height of the cylinder, and π (pi) is a mathematical constant with an approximate value of 3.14.
Its height was found to be 5cm.calculate the radius of the container. A cylinder has a curved surface area of 314.159 and a radius of 5. Height = 314.159 ÷ (2 x 3.14159 x 5) height = 314.159 ÷ 31.4159.