Question

there is a circular lawn of radius 28 metre. A path of 7 metre width is laid around the lawn what will be the area of the path ?​

Answer 1

Answer:

1386 m^2

Step-by-step explanation:

the area of the first circular lawn having radius 28 metre= πr^2=22/7×28×28

=2464m^2

the area of the second circular lawn having radius 35 metre(28+7) =22/7×35×35

=3850m^2

the area of path=second circular lawn - first circular lawn

=3850-2464

=1386m^2

Answer 2

Area of the path would be 1386 sq. cm.

Step-by-step explanation:

Since we have given that

Radius = 28 m

Width of path = 7 m

So, outer radius = 28+7 =35 m

So, Area of path would be

$\pi (R^2-r^2)\\\\=\dfrac{22}{7}\times (R+r)(R-r)\\\\=\dfrac{22}{7}\times (28+35)(35-28)\\\\=\dfrac{22}{7}\times 63\times 7\\\\=22\times 63\\\\=1386\ cm^2$

Hence, area of the path would be 1386 sq. cm.

# learn more:

There is a circular lawn of radius 28 metre. A path of seven metre width is laid around the lawn. What will be the area of the path? Solve the problem

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