Question

2 1 point A high rise apartment is on fire. There are two people in a window that is x feet abov What angle must the ladder make with the ground in Type your answer... 3 pour

Answer 1

We have the following:

We can calculate the angle by means of the trigonometric cosine ratios, as follows:

$\begin{gathered} \cos \theta=\frac{\text{adjacent}}{\text{hypotenuse}} \\ \text{adjacent = 15} \\ \text{hypotenuse = 28} \end{gathered}$

replacing:

$\begin{gathered} \cos \theta=\frac{15}{28} \\ \theta=\cos ^{-1}\frac{15}{28} \\ \theta=57.6\text{\degree} \end{gathered}$

Therefore the angle formed is 57.6 degrees