Question

A rectangular piece of land measures 0.7 km by
0.5 km. Each side is to be fenced with four rounds
of wire. What length of wire is needed?​

Answer 1

Answer:

9.6km

Step-by-step explanation:

Length of wire = 4×Perimeter

= 4×2(l+b)

= 8(l+b)

= 8 × 1.2

= 9.6km

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Answer 2

Step-by-step explanation:

to find fencing

l= 0.7km

b=0.5km

perimeter= 2(0.7+0.5)= 2.4km

to fence one time we require 2.4km length wire

to fence 4 times = 4(2.4)=9.6km

therefore length of fencing required= 9.6km= 9600m