SSC CHSL 7 Mar 2018 Shift 3 Paper

Section: English Language

Question : 23 of 100

Marks: +1, -0

The total surface area of a cube is 73.5 cm2. Find its side (in cm).

Solution:

Let side of cube =

a

cm
Total surface area of cube =

6a^2 = 73.5

⇒

a^ 2 = 73.5/6 = 12.25

⇒

a = √12.25 = 3.5

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