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Question -

The perimeter of a rectangle is 130 cm. If the breadth of the rectangle is 30 cm, find its length. Also find the area of the rectangle.



Answer -

Given:Perimeter = 130 cm
Breadth = 30 cm
Perimeter = 2 (l + b)
130 cm = 2(l + 30 cm)
⇒ 130 cm= l + 30 cm
⇒ 65 cm= l + 30 cm
⇒ 65 cm– 30 cm = l
∴ l = 35cm
Area of the rectangle = l × b = 35 cm × 30 cm
= 1050 cm2

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