In a right triangle, the length of one leg is 3 inches and the length of the hypotenuse is 5 inches. What is the length of the other leg?
Correct: B
Using the Pythagorean theorem, a^2 + b^2 = c^2, where c is the length of the hypotenuse (5 inches) and one of the legs (let's say a) is 3 inches. We need to find b. So, 3^2 + b^2 = 5^2, which gives us 9 + b^2 = 25. Subtracting 9 from both sides gives us b^2 = 16. Taking the square root of both sides, we get b = 4 inches.