Question

Consider the following formula used to find the volume of a cone.

Answer 1

Answer:

$\hookrightarrow \: { \rm{V = \pi {r}^{2} \frac{h}{3} }}$

• simplify making h the subject:

${ \rm{3V = \pi {r}^{2} h}} \\ \\ { \boxed{ \boxed{ \rm{h = \frac{3V}{\pi {r}^{2} } \: }}}}$

Answer 2

$\\ \sf\longmapsto V=\pi r^2\dfrac{h}{3}$

$\\ \sf\longmapsto \dfrac{h}{3}=\dfrac{V}{\pi r^2}$

$\\ \sf\longmapsto h=\dfrac{3V}{\pi r^2}$

Option B