The perimeter of a triangle is140cm. If the breadth of the rectangle is 20 cm ,find its length
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Answer:
Length of rectangle = 50cm
Step-by-step explanation:
Perimeter of rectangle = 140cm
Breadth = 20cm
Let the length be x.
Perimeter of rectangle = 2 ( length + breadth)
140 = 2 ( x + 20)
140 = 2x + 40
140 - 40 = 2x
100 = 2x
100/2 = x
50 = x
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