Trigonometry Math Word Problem
I've tried to solve the math problem. When I draw the diagram, it looks like I have to use the Cosine. However, I don't have an angle degree. I think I've missed a step somewhere. Wouldn't I have to solve the angle first? I've either confused myself or misunderstood the question.
Calculate the length of a staircase that is 3.2 m high, and has a slanted height of 4.7 m.