Question

a tank is in the form of a right circular cylinder its height is 48 M and the base area is 616 square metre find the lateral surface area and volume of the cylinder

Answer 1

base area of cylinder =πr^2= 22/7*r^2=616m square
r^2= 616*7/22= 196
r = √196
r =14
Now L.S.A.= 2πrh = 2*21/7*14*48= 4224m square

Answer 2

$h = 48m \\ \pi {r}^{2} = 616 {m}^{2} \\ {r}^{2} = \frac{616 \times 7}{22} \\ = \frac{56 \times 7}{22} \\ = 17.81 \\ voume = \pi {r}^{2} h \\ = 47832 {m}^{3} \\l sa = 2\pi \times rh \\ = 5371$