Let us begin by illustrating the problem using a diagram:
Here we have represented the angle that the driveway makes with the horizontal to be x
Step 1: Label the sides as shown:
Step 2: Using the sides given, find the required angle
The formula that relates the angle, opposite side and hypothenuse side is:
[tex]sin\theta\text{ = }\frac{opposite}{hypothenuse}[/tex]Applying the formula:
[tex]\begin{gathered} sinx\text{ = }\frac{11}{87} \\ sin\text{ x = 0.126437} \\ x\text{ }\approx\text{ 7.3}^0 \end{gathered}[/tex]Hence, it makes an angle of 7.3 degrees with the horizontal