Question Analysis
Determine the hypotenuse of a 45-45-90 triangle with legs of length , using the triangle’s side ratio properties.
Key Concept Explanation
45-45-90 Triangle Ratio: Legs are equal (), and hypotenuse .
For legs scaled to the unit circle (), the hypotenuse remains 1 (since it’s the unit circle radius).
Step-by-Step Solution
1. Apply the hypotenuse formula:
.
2. Simplify:
.
Option Analysis
1: Correct (matches unit circle hypotenuse)
: Incorrect (too small; hypotenuse must be longer than legs)