kayleigh7 kayleigh7
  • 11-04-2017
  • Mathematics
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How do you find the perimeter of a rectangle with diagonal

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SummerSuttles
SummerSuttles SummerSuttles
  • 18-04-2017
All the sides of a proper rectangle are 90 degrees. 
So you use sine and cosine to figure out the two different lengths of sides ( because rectangle sides are parallel). To find area you times the two sides together. To find perimeter you times the two sides by two and add them together.
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