Question

the radius of a circulation field is 20 cm and inside it runs a path 5 m wide all around find area of the path

Answer 1

Hey mate____

Here is your answer-

let,

radius of circular field = 20 m

So,

Area of circular field = πr^2

= 22/7 × (20)^2

= 22/7 × 400

= 8800 ÷ 7

= 1257.14 sq.m

Now,
If the width of path is 5 m then the radius of circle when we remove the path is 15 m
( 20 - 5 = 15 )

Area of circular field without path = πr^2

= 22/7 × (15)^2

= 22/7 × 225

= 4950 ÷ 7

= 707.14 sq.m

So,

Area of path = Area of circular field - Area of circular field without path

= 1257.14 - 707.14

= 550 sq.m

Therefore, the area of path is 550 sq.m

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