Question

plz tell me I am not cheating I have completed it plz​

Answer 1

Answer:

I think that option a is the correct one

Answer 2

Answer:

$b)3\pi \: {r}^{3}$

Step-by-step explanation:

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

if r is 3r and h is r

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

$\frac{1}{3} \pi \: (3r)(3r)(r)$

$\frac{1}{3} \pi \: 9 {r}^{3}$

cancel 3 and 9

$\pi \: 3 {r}^{3}$

so 3πr cube is ur answer

option b

hope it's helpful