Question

The valume of cylinder is 20 cm3.its hights is 10 cm.find the area of its base

Answer 1

For finding area of base which is circular done need radius of base first we have to find it

Volume of Cylinder =
$\pi{r}^{2} h$
$\pi{r}^{2} h = 20$

$(20 \div 10) \times (7 \div 22) = {r}^{2}$
$7 \div 11$

so .63=r^2
.8=r

now area

$\pi {r}^{2}$
$\pi \times {.8}^{2}$
2 cm^2

area of base is
$2 \ \: {cm}^{2}$
Hope Helpful