anonymous one year ago A 12-foot ladder rests against the side of a house. The base of the ladder is 3 feet away from the side of the house. How high above the ground is the top of the ladder? Round to the nearest tenth of a foot. A. 9.1 feet B. 11.6 feet C. 12.4 feet D. 153.0 feet

1. anonymous

i think A but not sure

2. Mehek14

|dw:1436811524377:dw| $$12^2-3^2=x^2\\144-9=135 \\ \sqrt{135}= 11.6$$

3. Mehek14

you have to use the pythagorean theorem

4. anonymous

thank u

5. Mehek14

yw $$\ddot\smile$$