Question: What is the length of the hypotenuse of a right triangle with legs of length 3 and 4 units?

Options:

1. 5 units
2. 6 units
3. 7 units
4. 8 units

Correct Answer: 5 units

Solution:

Using the Pythagorean theorem, c² = a² + b². Here, c² = 3² + 4² = 9 + 16 = 25, so c = √25 = 5 units.