find the volume of a right circular cylinder whose curved surface area is 2640 CM² and circumference of the base is 66 cm.
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CSA of cylinder = 2640 CM²
circumference of the base =66 cm
2πr = 66
2×22/7 ×r = 66
r = 21/2 cm
CSA of cylinder = 2πrh
2640 = 2×22/7 ×21/2 × h
40cm = h
Now,
Volume of cylinder = πr²h
= 22/7 ×21/2 ×21/2 ×40
= 13860 cm³
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