ANSWER:
2.33 foot
STEP-BY-STEP EXPLANATION:
We can calculate the distance from the staircase to the wall, by means of the trigonometric cosine ratio, which is the following:

Replacing and solving for x:

The distance would be 2.33 foot
Answer:
9.5 C?
Step-by-step explanation:
im guessing since it's last change was an additional 4.5
Answer:
390.377
Step-by-step explanation:
pi*r^2