Question

Give the surface area of sphere is is 144 CM square then its volume in in metre cube is

Answer 1

Answer:

Surface area of sphere = $4\pi r^2$

144 = $4 \pi r^2$

r^2 = $\frac{144}{4} X \frac{7}{22}$

r^2 = 10.5

r = 3.24 cm

Volume = 4 /3 πr^3

V = 4/3 X 22/7 X 10.5 X 10.5 X 10.5

V = 142.27