A rectangular sheet of area 264 cm 2 and width 11 cm is rolled along its breadth to make a hollow cy...........

Quantitative Aptitude (CDS) Mensuration 2D

A rectangular sheet of area 264 cm^2 and width 11 cm is rolled along its breadth to make a hollow cylinder.The area of the cylinder is?

260 m^2

264 m^2

256 m^2

262 m^2

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Explanation:

area of rectangular sheet=264 m^2
L×b=264
L=264/11
L=24 cm
a cylinder rolled along with breadth
so one side of cylinder form circular shape whose perimeter= 2πr=11
radius r=11/2π
cylinder height h=24 cm
area of cylinder=2πrh
=2 π 11/2π (24)
=264 m^2