The perimeter of a rectangular sheet is 20 cm. if the length is 7 cm, find its breadth.
pls answer
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The perimeter of a rectangular sheet is 20 cm. if the length is 7 cm, find its breadth.
pls answer
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Answer:
Let length=l, breadth=b of rectangle
⇒ Perimeter=2(l+b)
⇒100=2(35+b)
⇒50=35+b
⇒b=15cm
Area=lb=35×15=525cm
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