A rectangular piece of land measures 0.8 km by 0.6 km. Each side is to

1.	A rectangular piece of land measures 0.8 km by 0.6 km. Each side is to be fenced withthree rows of wire. Find the length of the wire needed. If the cost of fencing is 250 permetre, find the total cost of fencing the land
Answer» Given a rectangular PIECE of land with dimensions length(L)=.8KM and breadth= .6km To FIND: the cost of fencing the land Perimeter of the land= 2(l+b) =2(.8+.6) = 2× 1.4=2.8km Wire needed to fence THREE rows=3×2.8= 8.4km =8.4×1000=8400m (1km=1000m) Cost per metre=250Rs Therefore cost for fencing 8400m= 8400×250=21,00,000Rs

A rectangular piece of land measures 0.8 km by 0.6 km. Each side is to be fenced withthree rows of wire. Find the length of the wire needed. If the cost of fencing is 250 permetre, find the total cost of fencing the land

Answer»

Given a rectangular PIECE of land with dimensions length(L)=.8KM and breadth= .6km

To FIND: the cost of fencing the land

Perimeter of the land= 2(l+b)

=2(.8+.6)

= 2× 1.4=2.8km

Wire needed to fence THREE rows=3×2.8= 8.4km

=8.4×1000=8400m

(1km=1000m)

Cost per metre=250Rs

Therefore cost for fencing 8400m= 8400×250=21,00,000Rs