Question

find C.S.A sphere of radius 2.1 cm​

Answer 1

Answer:

C.S.A OF SPHERE IS 4πR²

$csa = 4 \times \frac{22}{7} \times 2.1 \\ csa = 4 \times 22 \times 0.3 \\ csa = 88 \times 0.3 \\ csa = 26.4c {m}^{2}$

hope its help you..