Help??
The accompanying diagram shows a 24-foot ladder leaning against a building. A steel brace extends from the ladder to the point where the building meets the ground. The brace forms a right angle with the ladder.

http://www.castlelearning.com/review/Courses/geometry/q3758.gif?v=20070420122556

1. 10/x = x/14
2. 10/x = x/24
3. 10^2 + x^2 = 14^2
4. 10^2 + x^2 = 24^2

I think the answer is 2, but i'm not sure can someone double check for me?

Question

Help??
The accompanying diagram shows a 24-foot ladder leaning against a building. A steel brace extends from the ladder to the point where the building meets the ground. The brace forms a right angle with the ladder.

http://www.castlelearning.com/review/Courses/geometry/q3758.gif?v=20070420122556




1. 10/x = x/14 
2. 10/x  = x/24 
3. 10^2 + x^2 = 14^2
4. 10^2 + x^2 = 24^2

I think the answer is 2, but i'm not sure can someone double check for me?