Question

5. A rectangular piece of land measures 0.7 km by 0.5 km. Each side is
fenced with 4 rows of wires. What is the length of the wire needed?​

Answer 1

Answer:

Perimeter of rectangle=2(l+b)

=2(0.7+0.5)km

=2(1.2)km

=2.4km

Total length of wire needed=2.4*4km

=9.6km

Answer 2

Answer:

Step-by-step explanation:

 length of the rectangle       : 0.7 km = 700 m

 breadth of the rectangle    : 0.5 km = 500 m

 perimeter of the rectangle :  2(l + b)

                                                = 2(700+500)

                                                = 2 * 1200

                                                =2400 m

 length of wire required for 1 row   : 2400 m

 length of wire required for 4 rows: 2400 * 4

                                                            =  9600 m

                          ANS: 9600 m