Using π = 22/7, find the volume of a cylinder with radius 7 cm and height 65 cm.
Note
Volume of a cylinder = πr²h. Substitute r=7 and h=65: volume = 22/7 × 7 × 7 × 65 = 10010 cubic cm. Think of a cylinder as many equal circular layers stacked up. So we find the circular base area πr² and multiply by the height. The answer is in cubic units, so the correct choice is 10010 cm³.
