Find the surface area of the given below figure having dimension in cm as shown. Options: A . &nbsp 900 c m 2 B . &nbsp 880 c m 2 C . &nbsp 650 c m 2 D . &nbsp 400 c m 2

Find the surface area of the given below figure having dimension in cm as shown.

Question

Find the surface area of the given below figure having dimension in cm as shown.

Options:

A .

900 c m^{2}

B .

880 c m^{2}

C .

650 c m^{2}

D .

400 c m^{2}

Answer: Option B
:
B

Surface area = base circle + curved surface area of the cylinder + curved surface area of the cone.
$= π r^{2} + 2 π r h + π r l$

$= π (5)^{2} + 2 π (5) (20) + π (5) (11)$
$= π \times 5 (5 + 40 + 11)$
$= \frac{22}{7} \times 5 \times 56$

$= 880 c m^{2}$ .

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