Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

The diameter of the circular park is 140 m. around it on the outside ,a path having the width of 7 m is constructed .if the path has to be fenced from

inside and outside at the rate of rs 7 per metre,find its total cost.



This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
We have to find the inside distance and outside distance.
for inside distance , radius = 140/2 =70 m
length of circumference =2π×radius
                                       =440 m
now, outside distance 
radius = 70 +7 = 77 m
length of circumference = 2π× radius
                                       = 2×(22/7)×77
                                       = 484 m
total length = 440 +484 =924 m
cost = Rs 7× 924 = Rs 6468
1 5 1
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts