Question

Calculate the C.S.A of a hemisphere of radius 3 cm.​

Answer 1

Answer:

CSA Of hemisphere=2π(radius)square

CSA=(2)(3.14)(9)

CSA=56.52

Answer 2

C.S.A of a hemisphere = 2πr²

$\: \: \: \: \: \: \: \: \: \: \: = 2 \times \frac{22}{7} \times 3m \times 3cm \\ \: \: \: \: \: \: \ \: \: \: \: = \frac{396}{7} cm ^{2} \\ \: \: \: \: \: \: \: \: \: \: \: = 56.57cm ^{2} \: \: \: \: \: (approximately)$