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### Question

#### There are two circle with same centre O. The radius of larger circle is 4cm and that of the smaller circle is 2cm.

Find area of the shaded region.

Find area of the shaded region.

- 36.5 sq cm
- 35.5 sq cm
- 37.7 sq cm
- 37 sq cm

#### The correct answer is: 37.7 sq cm

#### Ar of shaded region =ar. of larger circle – ar. of smaller circle

{ar. of circle = 22/7*r*r}

= 22/7*4*4-22/7*2*2

=22/7(16-4)

=22/7*12

=37.7 sq cm

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