Question

a triangular park with sides 180m,160m and 140m has to be fenced. if the cost of fencing is rs.2.50 a metre the cost of fencing in rupees is

Answer 1

Perimeter of triangle=180+160+140=480m
So,cost if fencing=480m*rs2.50=Rs.1200 ans

Note-for fencing perimeter is needed and for putting grass or fitting something inside area is needed...