Best Answer

Let the width be x:

2(length+width) = perimeter

2(20+x) = 50

40+2x = 50

2x = 50 -40

2x = 10

x = 5 centimeters

Check: 5+5+20+20 = 50 centimeters

Q: The perimeter of a rectangle is 50 centimeters The length of the rectangle is 20 centimeters What is the width of the rectangle?

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The length is (18 centimeters) minus (the width)

77cm!

Perimeter of rectangle = 2 x (Length + Width) = 2 x (L + 18) or = (2L + 36) centimetres.

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Another Answer:The length of the rectangle is 29 cm because 2*(29+23) = 104 cm which is the perimeter

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Another Answer:The length of the rectangle is 29 cm because 2*(29+23) = 104 cm which is the perimeter