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Other than what? It really all depends on what is given. For example:

  • If you know the length of one diagonal, the other is just as long.
  • If you know the length and width of the rectangle, use Pythagoras' formula for the diagonal.
  • If you know one of the sides of the rectangle, and an angle, use some basic trigonometry to find the diagonal.
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Q: Are there another formulae in solving th diagonals of the rectangles?
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