5. The perimeter of a rectangular sheet is 150 cm. If the breadth is 30 cm, find its
length. Also, find the area.
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Step-by-step explanation:
let length be x and breadth be y
2(x+y)=150
x+y=75
but y=30
x=75-30
x=45
hence,length is 45cm
and area is 30*45=1350cm^2
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