3) The length of a rectangle is 5 cm more than breadth. If the perimeter of the rectangle is
38 cm,find its area.​

2 thoughts on “3) The length of a rectangle is 5 cm more than breadth. If the perimeter of the rectangle is<br />38 cm,find its area.​”

1. Answer:

   84cm

   Step-by-step explanation:

   perimeter formula=2(l+b)

   breadth=x

   length=x+5

   perimeter=38cm

   2(x+x+5)=38cm

   2(2x+5)=38cm

   4x+10=38cm

   4x=28cm

   x=7cm

   length=x+5=7+5=12cm

   breadth=x=7cm

   area=l*b

   =7*12

   =84cm

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2. Answer:

   84 sq.m

   Step-by-step explanation:

   l=5+b

   =>2(5+2b)

   =>4b=28

   =>b=7

   area=l*b

   =12*7=84 sq.m

   Reply