Final answer:
The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the two legs (a and b). To find the length of the hypotenuse, you can rearrange the equation a² + b² = c² and solve for c using the square root.
Step-by-step explanation:
The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the two legs (a and b). So, the equation is given by a² + b² = c². To find the length of the hypotenuse, you can rearrange the equation and solve for c, which gives you c = √(a² + b²).