If 90 is the height, and 13.5 is the radius, then what is the surface area of this cylinder?

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21-03-2018
Mathematics

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If 90 is the height, and 13.5 is the radius, then what is the surface area of this cylinder?

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Аноним Аноним · Answer 1 · 2018-03-21T04:02:28+01:00

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Formula
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Surface area = 2πr² + 2πrh

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Find Surface Area
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Total surface area = 2 x π x (13.5)² + 2 x π x (13.5) x (90)
Total surface area = 364.5π + 2430π
Total surface area = 2794.5π
Total surface area = 8774.73 unit² (Take π as 3.14)

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Answer: 8774.73 unit²
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