If the perimeter of a rectangle is 45 cm and it's breadth is 8 cm 7 mm,then what is its length?
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let length be l
=2(87+l) (8 cm 7mm=87 mm)
=l=87/2
=l=43.5 mm
=2(87+l) (8 cm 7mm=87 mm)
=l=87/2
=l=43.5 mm
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