Question #N494
In a right triangle, one angle measures 30 degrees, and the side opposite that angle has a length of 10. What is the length of the hypotenuse of the triangle?
A. 5
B. 10\sqrt{3}
C. 20
D. 10\sqrt{2}
Correct Answer is: C
In a 30-60-90 triangle, the hypotenuse is twice the length of the shorter leg. Since the shorter leg has a length of 10, the hypotenuse has a length of 2(10) = 20.