1.

the perimeter of rectangle is 40 m it is length is 4m is less than 5 times is breadth find the area of the rectangle

Answer» PERIMETER of RECTANGLE = 40m
formula= 2(l+B)
l= 4-5b
b=b
=2(4-5b + b)
=2(4-4b)
=8-8b= 40m
=8b = 40-8
=8b. = 32
=b. =32/8
b= 4

now,
l=5 x 4= 20-4 =16
b= 4
area = lb
= 16x4
=64


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