RRB Paramedical Staff Nurse Model Paper 8

Question : 58 of 100

Marks: +1, -0

Find the curved surface area (in

cm^2

) of a hemisphere of diameter 28 cm.

Solution:

Diameter of Hemisphere

=28 {cm}

So, radius

=\;{28}/{2}=14 {cm}

The curved surface area of a hemisphere

=2 π r^{2}

2 π r^{2}=2 × \;{22}/{7} × 14 × 14

=1232 {cm}^{2}

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