The length of a rectangle is 6 centimetre more than its breadth if the perimeter of the rectangle is 60 cm find its length and breadth also find its area
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Perimeter of a rectangle is
p = 2*(l + b ).
where l is length of rectangle.
b is breadth of rectangle.
l is 6 cm more than b.
l = 6 + b.
give p = 60 cm.
2*(l + b)=60.
as l = 6+b.
2*(6+b+b)=60.
6+2b=60/2.
6+2b=30.
2b=30-6.
2b=24.
b=24/2.
b=12 cm(breadth).
l=6+b=6+12=18 cm(length).
Area = l*b = 18*12 = 216 sq.cm.
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