Question

A metalic solid cone is melted to form a solid cylinder of equal radius. If the height of the cylinder is 6 cm, then the height of the cone was

विकल्प

• 10 cm

• 12 cm

• 18 cm

• 24 cm

Answer 1

Let the height of the cone be h.
Volume of cylinder = Volume of cone

\[\Rightarrow \pi r^2 \left( 6 \right) = \frac{1}{3}\pi r^2 h\]

\[ \Rightarrow h = 18 cm\]