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
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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
Ask the House
