the length of a rectangle is 4cm less than twice it's width. the perimeter of the rectangle is 34 cm. what are the dimensions of the rectangle

Question

Madison Sellers

Mathematics

24 July, 18:15

the length of a rectangle is 4cm less than twice it's width. the perimeter of the rectangle is 34 cm. what are the dimensions of the rectangle

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Answers (1)

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Bethany Neal · Answer 1

w=width

l = 2w-4

perimeter of a rectangle = 34

34 = 2 (2w-4+w)

34 = 4w-8+2w

34 = 6w-8

6w = 34+8

6w = 42

w = 42/6

width = 7

length = 2w-4

= 2 (7) - 4

= 14-4

= 10