Answer:
4.76 degrees
Explanation:
The support beam 1 from the diagram is built 9 inches to the right of the beginning of the ramp and is 0.75 inches tall.
This is shown in the diagram below:
Using trigonometry:
[tex]\begin{gathered} \tan \theta=\frac{\text{Opposite}}{Adjacent} \\ \tan \theta=\frac{\text{0}.75}{9} \\ \theta=\arctan \text{ }\frac{\text{0.}75}{9} \\ \theta=4.76^0 \end{gathered}[/tex]
The angle measurement in degrees between the ground and the beginning of the ramp is 4.76 degrees.
