1.

The diameter of a circular park is 56 m On its outside, there is 3 m wide path running around it .findcost of turfing the path at 5 per souare metre.it into the shape of a circle. Find the radius​

Answer»

Step-by-step explanation:

Given The diameter of a circular park is 56 m On its OUTSIDE, there is 3 m wide path running AROUND it .find  cost of turfing the path at 5 per SQUARE METRE. it into the shape of a circle. Find the radius​

  • cost of turfing the path at 5 per square metre.
  • it into the shape of a circle. Find the radius
  • The diameter of a circular park = 56 m
  • Radius of a circular park r = 56 / 2 = 28 m
  • Width of path = 4 m
  • Radius of the park with path R = 28 + 4 = 32 m
  • Area of path = Area of outer circle – Area of the inner circle
  •                    = πR^2 – πr^2
  •                     = π (R^2 – r^2)
  •                     = π (R + r) (R – r)
  •                    = 22/7 (32 + 28) (32 – 28)
  •                   = 22/7 x 60 x 4
  •                  = 754.2 m^2
  • Now the cost of turfing the path of 1 m^2 = Rs 5
  • Therefore cost of turfing the path of 754.2 m^2 is Rs 5 x 754.2
  •                                                                                = Rs 3771.42

Reference link will be

brainly.in/question/7267206


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