Question

the diameter of a circular park is 24m. A3m width path runs around it from inside . find the cost of paying the path at rs25 per square meter

Answer 1

Since the Diameter= 24m. The Radius will be = D/2= 24/2 = 12m.

It is given that a 3m wide path runs around it from 'inside'. Therefore, the Radius of the bigger circle will be 12-3= 9m

Area of bigger circle= pi r²
                                = 22/7 * 12 * 12 = 452.57m²

Area of smaller circle = pi r²
                                   = 22/7 * 9 * 9 = 254.57m²

So the area of path= Area of bigger circle- Area of smaller circle
                               = 452.57- 254.57
                               = 198 m²

The total cost= 198* 25= Rs. 4950

Answer 2

Hii
I am giving in short sry but other has given in detail so you can...
It can be area of path= Area of bigger circle- Area of .. = 452.57- 254.57 = 198 m²

The total cost= 198* 25= Rs. 4950ans..
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