In a 45-45-90 right triangle, if the length of the hypotenus...

Question Analysis
This problem evaluates the understanding of the properties of a 45-45-90 triangle and the application of the cosine function.

Key Concept Explanation
In a 45-45-90 triangle, the legs are equal, and the hypotenuse is times the length of each leg. The cosine of 45 degrees is or .

Step-by-step Solution
1. Given: hypotenuse = 14