6. The volume of a cylinder is 448cm’ and its height is 7 cm. Find the curved surface area and total surface area of a cylinder
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Answer:
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Step-by-step explanation:
Volume =448πcm
3
height =7cm
πr
2
h=448π
r
2
×7=448
r
2
=64
r=8
lateral surface
Area =2πrh
=112πcm
2
Total surface Are
=2πrh+2πr
2
=112π+128π
=240πcm
2
Answered by
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i don't know
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