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7. 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.
of lonothm and breadth Imisfied in a wall. The length of the
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Explanation:
- perimeter of a rectangle =130 cm.
- breadth=30 cm.
- length =?
- perimeter of a rectangle =2 (l+b)
- 2 (l+30)=130 cm
- l+30=130÷2
- l+30=65
- l=65-30
- l=35
- area of rectangle =l×b
- =35×30=1050cm
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