Geometry

Question Analysis:
This real-world problem applies the Pythagorean Theorem to a common scenario.  
The main focus is on modeling a situation and selecting the correct quantities to use in the theorem.

Key Concept Explanation:
The ladder forms a right triangle with the wall and ground:
- Hypotenuse = ladder length (17 m)
- One leg = height on wall (8 m)
- Other leg = distance from wall (unknown)

Step-by-Step Solution:
1. Set up equation:
 
2. Calculate:
 

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