If one side of a rectangle measures 6 cm, then what should be the measure of its adjacent side if its perimeter is 26 cm ?
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formula of perimeter of rectangle is 2(l+b)
so, 2(6+b)=26
6+b=26/2
6+b=13
b=13-6
b= 7
so, 2(6+b)=26
6+b=26/2
6+b=13
b=13-6
b= 7
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