In a right triangle, the length of the hypotenuse is 10 cm and one of the legs is 6 cm. What is the length of the other leg?
Correct: A
Using the Pythagorean theorem, a^2 + b^2 = c^2, where c is the length of the hypotenuse and a and b are the lengths of the legs. We are given c = 10 cm and one of the legs, let's say a, is 6 cm. We need to find b. So, 6^2 + b^2 = 10^2. This means 36 + b^2 = 100. Subtracting 36 from both sides gives us b^2 = 64. Taking the square root of both sides, we get b = 8 cm.