The perimeter of a rectangle is 60 cm. Its length is 12 cm what is its width?

**Perimeter of a rectangle = 2(width) + 2(length)**

60 = 2w + 2(12) {substituted perimeter and length into perimeter formula}

60 = 2w + 24 {multiplied 2 by 12}

2w = 36 {subtracted 24 from each side}

w = 18 {divided each side by 2}

width = 18 cm

width = 18 cm

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