A rectangular paper of width 7 cm is rolled along its width and a cylinder of a radius 9 cm is formed. The volume of the cylinder is:(Take $π =\frac{22}{7}$)
Answer & explanation
Correct answer: option 4
We know that,
Volume of the cylinder = πr2h
We have,
The radius of the cylinder r = 9 cm
Height of the cylinder h = 7 cm
Volume of the cylinder = \(\frac{22}{7}\) × 9 × 9 × 7 = 1782 cm2