A ramp goes from a doorway of a building to the ground. The end of the ramp connected to the doorway is 2 feet above the ground. The horizontal distance from the bottom of the ramp to the building is 15 feet. What is the angle of elevation of the ramp to the nearest degree?

7deg

82deg

8deg

0deg

2 answers

slope of ramp = 2/15

Did you know that the slope of a line is the tan(angle line makes)
so tanθ = 2/15
θ = tan-inverse (2/15) or tan^-1 (2/15) = 7.5946... °

What do you think?
I'm so confused