Question

find the valume and surface area of a sphere of radios 2.1

Answer 1

Volume of a sphere:

Volume = 4/3 πr³

Volume = 4/3 π(2.1)³

Volume = 38.808 units³

Surface area of a sphere:

Surface area = 4πr²

Surface area = 4π (2.1)²

Surface area = 55.44 units²

Answer: (a) Volume =  38.808 units³ (b) Surface area = 55.44 units²