please answer this question friends please
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1)Length=6cm
breadth=4cm
perimeter =2(l+b)
= 2(6+4)
= 2(10)
= 20cm
2)p=2(l+b)
54=2(13+b)
54=26+2b
54-26=2b
28=2b
b=28/2
b=14cm
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