Question

3. The area of a rectangular plot is 270 m2 and its length is 18 m. If the cost of
fencing the park by wire is rupees 25 per metre, find the total cost of fencing.​

Answer 1

Answer:

length=18m

area=270 m2

Now,

length×breadth=270{area of rectangle=l×b}

18×breadth=270

breadth=270/18

breadth=15m

now, the park has to be fenced with wire

cost of fencing per meter=Rs.25

perimeter of rectangle=2(l+b)

=2(18+15)

=2×33

=66m

cost of fencing the park=66×25

=Rs.1650

Hope it will help you...