SSC CHSL 7 Mar 2018 Shift 2 Paper

Section: English Language

Question : 23 of 100

Marks: +1, -0

Find the curved surface area in cm

^2

of a right circular cylinder of diameter 28 cm and height 12 cm.

Solution:

Radius of cylinder ,

r=28/2=14

cm and height,

h=12

cm
⇒ Curved surface area of cylinder =

2πrh

2 × 22/7 ×14 × 12

88 × 12 = 1056 cm^2

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