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# Find the area between the two concentric circles of radius 3cm and 4cm.

- 7 cm
^{2} - 22 cm
^{2} - 22/7 cm
^{2} - 16 cm
^{2}

^{2}^{2}^{2}^{2}## The correct answer is: 22 cm^{2}

### area of circle = pi r^{2 }

In this case it will be =. Pi (4^{2}-3^{2}) = 22/7 x (16-9) = 22/7 x 7 = 22 cm^{2}

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