brebreansley brebreansley

18-08-2017
Mathematics

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The length of a Rectangle is twice the width find the width if the perimeter is 60 cm

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kphung76127 kphung76127

18-08-2017

Perimeter= 2(length+width)

60= 2(l+w)
l=2w

Substitution method
60= 2(2w+w)
60= 2(3w)
30= 3w
10= w

Plug the value of w in.
l= 2(10)
l=20

Final answer: Length= 20, width=10

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