what is the volume of the right circular cylinder whose curved surface area is 2640 cm2 and circumference of the base is 66cm?
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Step-by-step explanation:
ANSWER
Given:Circumference of the base=2πr=66 cm
⇒2×
7
22
×r=66
⇒r=
2×22
66×7
=
2
21
=10.5 cm
Curved Surface area of a cylinder=2πrh=2640 sq.cm
⇒h=
2π×10.5
2640
=
2×22×10.5
2640×7
=10 cm
Volume of cylinder =πr
2
h=
7
22
×10.5×10.5×10=3,465cm
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