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To find the hypotenuse with angle a and side b, we use the identity below:

  • cos(a) = b/c

We have a and b, and to find c, we multiply both sides by c and divide both sides by cos(a):

  • c = b/cos(a)
  • c = 5/cos(30)
  • c = 32.41460617mm
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Q: How do you find hypotenuse c angle a equals 30 deg side b equals 5 mm?
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