Answer: 924 cm² Step-by-step explanation: CSA of cylinder = 2πrh r = 7 cm h = 21 cm CSA = [tex] = 2\pi \: rh \\ = 2 \times \frac{22}{7} \times 7 \times 21 \\ = 2 \times 22 \times 21 \\ = 44 \times 21 \\ = 924 \: {cm}^{2} [/tex] Hope you get your answer Reply

Answer:924 cm²

Step-by-step explanation:CSA of cylinder = 2πrh

r = 7 cm h = 21 cm

CSA =

[tex] = 2\pi \: rh \\ = 2 \times \frac{22}{7} \times 7 \times 21 \\ = 2 \times 22 \times 21 \\ = 44 \times 21 \\ = 924 \: {cm}^{2} [/tex]

Hope you get your answer