Question

volume of cone is 616cm³ and height 21cm. find its radius &C. S. A​

Answer 1

Answer:

Volume of cone is 616 cubic cm

height is 21cm

volume of cube :-

$\frac{1}{3} \pi \: {r}^{2} h$

so that,

$616 = \frac{1}{3} \times \frac{22}{7} \times {r}^{2} \times 21$

$616 = 1 \times 22 \times {r}^{2}$

$\frac{616}{22} = {r}^{2}$

${r}^{2} = 28$

$r = \sqrt{28 \: cm}$

I hope it will help you...!