Question

A Concrete pillar is Cylinder With A Radius of 14 cm and a height of 2m
a) Find the Volume of The pillar The pillar is made of Concrete But Contains
10 Steel rods of length 1.8m And diameter 1.2 cm.
b) Find the Volume of one of the rods And the Volume of Steel In the pillar
c) Find the Volume of Concrete Contained in the pillar

Answer 1

When the height of a cylinder is 12 cm and the radius is 4 cm, the circumference of the cylinder is increasing at a rate of π 4 cm/min, and the height of the cylinder is increasing four times faster than the radius.