the perimeter of a rectangle is 40 m its length is four meters less than its five times its breadth find the area of the rectangle
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Step-by-step explanation:
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Step-by-step explanation:
Perimeter =40m
2(l+b)=40. L+b=20.—1
Given that : length is 4m less than 5times it’s breadth : 5b-4=l —2
Subs 2 in 1
5b-4+b=20
4b=24
B=6–(3)
Subs 3 in 1
L=14
Area of rectangle = l*b
= 14*6
=84cm^2
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