5. The perimeter of a rectangle is 180 m
and its length is 10 metres more than
its width. Find its length and width.
Answers
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Step-by-step explanation:
Perimeter of a rectangle is 2(l+b)
2(l+b)= 180
l+b= 90
given l= 10 +b
substitute in the above equation
(10+b)+b= 90
2b+10=90
2b= 80
b= 40m
for length substitute b in the equation
l= 10+40
l=50m
So length is 50m and breadth is 40m
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