Question #N532
In a right triangle, one angle measures 30 degrees. The side opposite this angle has a length of 5. What is the length of the hypotenuse?
A. 5\sqrt{2}
B. 5\sqrt{3}
C. 10
D. 10\sqrt{3}
Correct Answer is: C
A 30-60-90 right triangle has side lengths in the ratio 1:sqrt(3):2. Since the side opposite the 30-degree angle has length 5, the hypotenuse has length 10.