Question

find the total surface area of a hemisphere of a radius 10cm.(useπ=3.14

Answer 1

surface area is 3*pi*r*2
then sub values......u will get 942 cm

Answer 2

T.S.A of hemisphere =
$3\pi {r}^{2} \\ = 3 \times 3.14 \times 10 \times 10 \\ = 3 \times 314 \\ = 942 cm {}^{2}$