Answer:
The Pythagorean theorem calculates the length of the longest side of a right triangle, also called the hypotenuse.
According to Pythagoras, in a right triangle, the sum of the squares of the two shortest sides, also called the legs, is equal to the square of the hypotenuse (the longest side). In other words, if we denote by a, b and c the respective lengths of each side of the triangle, the Pythagorean theorem states that a² + b² = c².
How to calculate the hypotenuse?
The hypotenuse is the opposite side of the right angle of the right triangle, the longest side. According to the Pythagorean theorem, the square of the hypotenuse is equal to the sum of the squares of the lengths of the sides at right angles (the legs).
Explanation: