Find the cost of fencing a circular field of area 9856m square at the rate of Rs 20 per metre..

u r given area

so find radius{phi r square}

then find perimeter{phi r square} because fencing means somrthing like a boundary

multiply by 20

u will get the ans

  • -3

there is a mistake

perimeter is 2 phi r

 

u r given area

so find radius{phi r square}

then find perimeter{phi r two} because fencing means somrthing like a boundary

multiply by 20

u will get the ans

  • -1
No
  • -2
The answer is below

  • 1
Sorry, radius is 56 and other format is right
  • 2
What are you looking for?