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Pythagoras 8 15

8,\ 15

Step by step

  1. c^2 = a^2 + b^2 = 8^2 + 15^2 = 289

    Pythagoras: in a right triangle the square on the hypotenuse equals the sum of the squares on the legs.

  2. c = \sqrt{289} = 17

    Take the square root.

Reveal the answer
c = 17