The volume of right circular cylinder is 770cm3 if its height is 20cm. Find its radius and curved surface area.
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Answered by
8
here your answer
volume of cylinder is = 770
πr^2h=770
22/7*r^2*20=770
r^2=770*7/22*20
r^=77*7/44
r^=7*7/4
r=✓49/4
r=7/2
curved surface area of cylinder=2πrh
2*22/7*7/2*20
11*2*20
440cm2 answer
volume of cylinder is = 770
πr^2h=770
22/7*r^2*20=770
r^2=770*7/22*20
r^=77*7/44
r^=7*7/4
r=✓49/4
r=7/2
curved surface area of cylinder=2πrh
2*22/7*7/2*20
11*2*20
440cm2 answer
Answered by
4
r=7/2cm=3.5cm
csa=440cm^2
csa=440cm^2
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