Question

urgent question :- if the volume of a cone of height 9cm is 48πcm³ . Find the diameter of the base

Answer 1

h = 9 cm
$volume = 48\pi$
$\frac{1}{3} \pi {r}^{2} h \: = 48\pi$
${r}^{2} h = 48 \times 3$
${r}^{2} = \frac{144}{9}$
${r}^{2} = 16$
r = 4 cm

diameter is 8cm

Answer 2

Volume of cone = 1/3 *pie *radius square *height
48 pie = 1/3 pie *radius square * 9
48=radius square *3
48/3=radius square
Radius square =16
Radius=4
And diameter =8