Question

The radius of a circular park is 3.5m and it is surrounded by 1.4m broad footpath. Find the area of footpath.

Answer 1

Answer:

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Step-by-step explanation:

we have radius of circular park = 84/2 m

= 42 m

area of circular park (A) = 22 / 7 × 42 ^ 2 m^2

= 5544 / 7 m^2

radius of circle including the path and circular park = 42 + 8 m

= 50 m

area of the circle (a) = 22/7 × 50 ^ 2 m^2

= 55000 / 7 m^2

therefore area of the path

= a - A

= 5544 / 7 - 55000 / 7 m^2

= (5544 - 55000) / 7 m^2

= 2313.14286 m^2

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Answer 2

Answer:

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