Question

find the cost of erecting a fencing around a square field whose area is 9 hectares if fencing cost rupees 3.50 per metre

Answer 1

Here is your answer.
Hope it helps you

Answer 2

Answer:

           4200/-

Step-by-step explanation:

                   1 hectare = 10000 m²

            So , 9 hectare = 90000m²

                      area = a²= (90000)²

                                  a =√90000

                                  a = 300

                 

                      one side = 300 m

                 Perimeter  p = 4a = 4×300

                                                =1200m

               

             cost of 1m fencing  = Rs 3.50  

  ∴  Cost of 1200m fencing  = 1200× 3.50

                                               = 4200/-