Pythagoras: shorter sides

你需要知道的

• Pythagoras’ theorem applies to right-angled triangles; the hypotenuse is opposite the right angle and is the longest side.
• Use a² + b² = c², with c as the hypotenuse, then take a square root to find a missing side.
• When the hypotenuse and one shorter side are known, subtract the shorter side’s square before taking the square root.

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