SSC CHSL 6 Mar 2018 Shift 1 Paper

Section: English Language

Question : 23 of 106

Marks: +1, -0

Find the total surface area (in cm

^2

) of a hemisphere of diameter 42 cm.

Solution:

Radius of hemisphere,

r=42/2=21

cm
Total surface area =

3πr^2

3 × 22/7 × (21) ^2

66 × 3 × 21 = 4158 cm^2

Go to Question:

Prev Question

Next Question