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

Options:

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

Correct Answer: 5 cm

Solution:

Using the Pythagorean theorem, c² = a² + b², we have c² = 3² + 4² = 9 + 16 = 25, so c = 5 cm.