emilyR6173 emilyR6173
  • 12-06-2018
  • Mathematics
contestada

The length of a rectangle plus its width is 20 cm. the area is 36 square cm. what are the length and width of the rectangle?

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sqdancefan
sqdancefan sqdancefan
  • 17-06-2018
The area is the product of length and width, so you want factors of 36 that add to give 20.
  36 = 1*36 = 2*18 = 3*12 = 4*9 = 6*6
The factors that sum to 20 are 2 and 18.

The rectangle is 2 cm wide and 18 cm long.
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