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6) The length of a rectangle is three times the breadth. If the minimum perimeter of the rectangle is 160 cm, then what can you say about breadth?a) Breadth = 20b) Breadth 20c) Breadth 20d) Breadth 20
length=3x breadth=x
2(l+b)=2(3x+x)=8xwhich is the perimeter
8x=160cm
x=20cm
so, breadth=20 cm
length=60 cm
a) breadth = 20
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