Help with Trigonometry and the Pythagorean Theorem

Ha funny. But does anybody know the Pythagerous theorem or Trigonometry here I am struggling and need some answers as to what I'm supposed to be doing.

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Pythagorean Theorem: leg1 + leg2 = hyp2

hyp is the hypotenuse, the slanting part of the right triangle

The two sides that make the right angle are the legs

leg^1 + leg^2 must = hyp^2 for it to be a right triangle