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40 The table shows the dimensions of three cylinders.
Cylinders
Cylinder
W
X
Radius (inches)
3
4
4.5
Height (inches)
9
2
6
Which two cylinders have the same lateral surface area in square inches?
F Cylinders W and Y
G Cylinders W and X
H Cylinders X and Y
3 None of these

Respuesta :

option (I) is correct None of these.

surface area of a cylinder, A= 2πrh+2 πr^2 .

surface area of a cylinder W = 2π(3)(9)+2 π(3)^2 = 226.19467 inch^2

surface area of a cylinder X = 2π(4)(2)+2 π(4)^2 = 150.79645 inch^2

surface area of a cylinder Y = 2π(4.5)(6)+2 π(4.5)^2 = 296.88051 inch^2

therefore,

option (I) is correct None of these.

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