Question

A rectangular piece of land measures 850 m by 700 m. each side is to be fenced with 5 rows of wires . Calculate the length of the wire needed and the coast of fencing at ₹ 80 per metre​

Answer 1

Answer:

length=850m

breadth=700m

Perimeter of rectangle=2(l+b)

=2(850+700)

=2(1550)

=3100m

Length for 5 fence=3100(5)

=15500Rs

Cost=80(15500)

=1240000

Answer 2

Answer:

₹1240000

Step-by-step explanation:

For rectangular piece of land

L-850 m

B-700 m

Perimeter - 2x(l plus b)

- 2 × (850 plus 700)and

- 2 × 1550

- 3100

Length of wire needed for 1 row = 3100 m

Length of wire needed for 5 rows = 3100 × 5

= 15500

Cost for fencing 1 m sq = ₹80

Cost for fencing 15500 m sq = 80 × 15500

= ₹1240000