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A circular park of radius 14 m has a 7 m wide gravel path running all around it on the outside.
Find the area of the path. (Take π = $\frac{22}{7}$ )

Class 7Area of a CirclePerimeter and Area

A $770 m^{2}$
B $616 m^{2}$
C $1386 m^{2}$
D $154 m^{2}$

Step-by-Step Solution

Outer radius = 14 + 7 = 21 m. Path =

\frac{22}{7} * (2 1^{2} - 1 4^{2}) = \frac{22}{7} * (441 - 196) = \frac{22}{7} * 245 = 770 m^{2}

.

Answer: A)

770 m^{2}

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