In a 30-60-90 triangle, the sine of 60 degrees is $$\underli...

Question Analysis
This problem tests the knowledge of sine values for special right triangles, specifically the 30-60-90 triangle.

Key Concept Explanation
In a 30-60-90 triangle, the sides are in the ratio . The sine of 60 degrees is the ratio of the longer leg (opposite the 60-degree angle) to the hypotenuse.

Step-by-step Solution
1. Recall the sine value for 60 degrees in a 30-60-90 triangle: