Question

the volum of a cylingder is 2512cu cm and it height is 12.5cm find the radius of base (take pi = 3.14)

Answer 1

volume of cylinder - pie x radius^2x height then ,2512 - 3.14 x r^2 x 12.5 then, 2512 - 39.25 x r^2 then, 2512 / 39.25 - r^2 so, 64 - r^2 hence, r - 8 cm