Question

find the curved surface area of the cylinder whose volume is 40194 cm^3 and radius of the base is 21 cm​

Answer 1

Step-by-step explanation:

• Volume of cylinder = πr^2h
• 40194 cm^3 = 22/7 × 21×21 ×h
• 40194 × 7 ÷ 22×21×21. = h
• h = 29cm
• Curved surface of cylinder = 2πrh
• = 2×22/7×21×29

= 3828 cm^2

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