Question

Curved surface of hemisphere is 942 cmsq find volume of hemisphere

Answer 1

Answer:

C.S.A=942 cmsq

Step-by-step explanation:

volume of hemisphere=3.14*r^2*2/3

2*3.14*r^2=942

3.14*r^2=471

r^2=150

$r =5\sqrt{6}$

volume of hemisphere=3.14*150*2/3

                                     =3.14*50*2

                                     =3.14*100

                                      =314 cm^3

Answer 2

Answer:

Curved surface area of a hemisphere =

$2\pi{r}^{2}$

So,

$2\pi {r}^{2} = 942$

$2 \times \frac{22}{7} {r}^{2} = 942$

${r}^{2} = 942 \times 7 \div 22 \times 2$