Question

find the total surface area of a hemisphere of radius 10cm(use pi=3.14)

Answer 1

total surface areaof hemisphere = 3 ×pie × r^2
= 3× 3.14 × 100
=968

Answer 2

TSA OF HEMISPHERE=
$4\pi {r}^{2}$
¶ 4×3.14×10×10=314×4= 125cmsquared