Question #N81
In a right triangle, one angle measures 30 degrees, and the hypotenuse is 10 units long. What is the length of the side opposite the 30-degree angle?
A. 2
B. 5
C. 5\sqrt{3}
D. 10\sqrt{3}
Correct Answer is: B
A 30-60-90 triangle has side ratios of 1:√3:2. Since the hypotenuse is 10 units, the side opposite the 30-degree angle is half the length of the hypotenuse, which is 10/2 = 5 units.