Question

The circumference of the base of cylinder is 198cm and its height is 30cm. Find the volume of the cylinder

Answer 1

Circumference of base = 2πr

198 = 2πr

99 = πr

99 × 7/22 = r

63/2 = r

h ( height of Cylinder ) = 30cm


Volume of Cylinder = πr²h

= 22/7 × ( 63/2 )² × 30






$= \frac{22}{7} \times \frac{63}{2} \times \frac{63}{2} \times 30$





$99 \times 45$


= 4455cm³