the ratio of length and breadth of a rectangle is 7:5 the perimeter of the rectangle is 72m what is the area of the rectangle
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lel l be 7x and b be 5x
perimeter of rectangle =2(l+b)
72m =2(7x+5x)
72=2(12x)
72=24x
x=72/24
x=3m
so , l=7x=7x3=21m
b=15m
area of rectangle=lxb
15x21
315m^2
perimeter of rectangle =2(l+b)
72m =2(7x+5x)
72=2(12x)
72=24x
x=72/24
x=3m
so , l=7x=7x3=21m
b=15m
area of rectangle=lxb
15x21
315m^2
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