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Question -

The perimeter of a rectangular sheet is 100 cm. If the length is 35 cm, find its breadth. Also find the area.



Answer -

Given: Perimeter = 100 cm
Length = 35 cm
Perimeter = 2(l + b)
100 = 2(35 + b)
100/2=35+b
⇒ 50 = 35 + b
⇒ b = 50 – 35 = 15 cm
∴ Breadth = 15 cm
Area = l × b = 35 cm × 15 cm
= 525 cm2

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