A cylinder is 2cm thick and it's diameter is 21 cm and it's height is 300 cm. find the total surface area od the cylinder
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Answer:
20493cm^2
Step-by-step explanation:
Total surface area = 2πr(h+r)
= 2 × 22/7 × 10.5 × (10.5+300)
= 2 × 22 × 1.5 × 310.5
= 20493cm^2
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