ANSWER
6.6 ft
EXPLANATION
The section of the course will contain a 12 foot ladder leaning against a 10 foot wall.
Let us draw a diagram of the situation:
This situation forms the shape of a Right Angle Triangle.
x represents the distance of the bottom of the ladder from the wall.
We can find the value of x by using Pythagoras rule:
[tex]\text{hyp}^2=opp^2+adj^2[/tex]From the question:
hyp = 12 ft
opp = 10 ft
adj = x ft
So, we have that:
[tex]\begin{gathered} 12^2=10^2+x^2 \\ \Rightarrow144-100=x^2 \\ x^2=44^2 \\ x\text{ = }\sqrt[]{44} \\ x\text{ = 6.6 ft} \end{gathered}[/tex]The wall should be 6.6 ft from the bottom of the ladder.