Question

A conical cup has a height of 21 cm and the diameter of its base is 18 cm Find the amount of water it can hold

• A. 1857 cm${}^3$
• B. 1782 cm${}^3$
• C. 1827 cm${}^3$
• D. 1852 cm${}^3$

Answer 1

Answer: (B)

Diameter of the base = 18 cm
∴Radius=182=9cm

Volume of the cone $=\frac{1}{3}\pi r^{2}h=\frac{1}{3}\times \frac{22}{7}\times 9^2\times 21=1782c{m}^3$