What Is the Side-Side Formula? Understanding the Pythagorean Theorem Explained

Learn what the side-side formula is and how to use the Pythagorean theorem to find missing sides in right-angled triangles.

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The side-side formula, often referred to as the Pythagorean theorem, is useful in a right-angled triangle. It states that a² + b² = c², where ‘c’ is the hypotenuse (the side opposite the right angle), and ‘a’ and ‘b’ are the other two sides. This formula helps you calculate the length of any side if the lengths of the other two sides are known.

FAQs & Answers

  1. What does the side-side formula represent? The side-side formula, also known as the Pythagorean theorem, represents the relationship a² + b² = c² in right-angled triangles, allowing you to calculate any side if two sides are known.
  2. How do you use the Pythagorean theorem to find a missing side? To find a missing side, square the lengths of the known sides, add or subtract accordingly, and then take the square root to determine the unknown length.
  3. Can the side-side formula be used for any triangle? No, the side-side formula only applies to right-angled triangles, where one angle measures exactly 90 degrees.

Watch More

For more insights on triangle properties and geometry formulas, explore our videos on the Pythagorean theorem applications, trigonometry basics, and solving right triangle problems.

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