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DRDO Multi tasking staff Model paper 9
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© examsnet.com
Question : 84
Total: 100
The radius of an incircle of a square is 2√7 cm . Find the area of the circumcircle of the square.
136
cm
2
106
cm
2
176
cm
2
216
cm
2
Validate
Solution:
Area of excircle of a square = 2 × area if incircle of the square.
⇒ Area of the excircle of the square
=
2
×
π
(
2
√
7
)
2
=
2
×
22
7
×
4
×
7
=
176
cm
2
© examsnet.com
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