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  • Pythagorean Theorem.

  • Mysterious Island.

  • In Pythagorean theorem, triangle should be right angled.

  • Longest side of triangle is opposite to the 90 degree angle.

  • It is called the hypotenuse.

  • These two adjacent sides are called the legs of the triangle.

  • I am Pythagoras.

  • By Pythagorean theorem, AB square plus BC square is equal to AC square.

  • If you want to get out, you have to use Pythagorean theorem.

  • Length of AB is equal to 3 meters.

  • Length of BC is equal to 4 meters.

  • By my theorem, you need to find the length of AC.

  • By Pythagorean theorem, AB square plus BC square is equal to AC square.

  • Substituting AB is equal to 3 and BC is equal to 4.

  • AC square is equal to 3 square plus 4 square.

  • AC square is equal to 9 plus 16.

  • AC square is equal to 25.

  • Therefore, AC is equal to 5.

  • Hence, length of AC is equal to 5 meters.

  • The End.

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Pythagorean Theorem.

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