Question

find the height of a cylinder with a surface of 1368 and radius of 12 use 3.14 pi

Answer 1

surface area of the cylinder = 1368

radius = 12

surface area of a cylinder = (2π r h) + (2π r^2)

(2π × r × h) + (2πr^2) = 1368

(2 × 3.14 × 12 × h) + (2×3.14×12^2) = 1368

(75.36 × h) + 904.32= 1368

75.36 × h = 1368 - 904.32

75.36 × h = 463.68

h = 463.68 / 75.36

h = 6.15

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