Question

A rectangular field has to be fenced on one long side, one short side and one diagonal. If the cost of the fence is 10 per metre, the area of the field is 4800 m² and the field is 60 m long on the short side, then what is the overall cost of the fence? ​

Answer 1

Answer:

2400

Step-by-step explanation:

let the length of the farm be l

given breadth b=60m

then l=area/breadth=4800/60=80m

diagonal=√l^2+b^2=√80^2+60^2=√6400+3600

=√10000=100m

cost of fencing =10*length of fence

=10*(80m+60m+100m)=10*240=2400