3. The perimeter of a rectangular field is 120 metres. If its breadth

1.	3. The perimeter of a rectangular field is 120 metres. If its breadth is 27 metres. find its length.
Answer» Let the length and breadth of the rectangular field be l m and b m, respectively.According to the question, we have:2(l+b)=120 ...(i) ⇒l+b=60Given that b=27m ...(ii)Using (ii) in (i), we have:l+27=60⇒l=60-27⇒l=33m∴ length of rectangle is 33 m

3. The perimeter of a rectangular field is 120 metres. If its breadth is 27 metres. find its length.

Answer»

Let the length and breadth of the rectangular field be l m and b m, respectively.According to the question, we have:2(l+b)=120 ...(i)

⇒l+b=60Given that b=27m ...(ii)Using (ii) in (i), we have:l+27=60⇒l=60-27⇒l=33m∴ length of rectangle is 33 m