CPM Homework Banner
4-29.

Salvador has a hotdog stand meters from the base of the Space Needle in Seattle.  He prefers to work in the shade and knows that he can calculate when his hotdog stand will be in the shade if he knows the height of the Space Needle.  To measure its height, Salvador stands at the hotdog stand, gets out his clinometer, and measures the angle to the top of the Space Needle to be .  Salvador’s eyes are meters above the ground.  Assuming that the ground is level between the hotdog stand and the Space Needle, how tall is the Space Needle?  

Sketch a diagram to help visualize the problem.

Use the tangent ratio with a variable for the vertical distance between Salvador's eye sight and the top of the Space Needle.

Right triangle, above a horizontal line, with stick figure, labeled 1.5 m, at the vertex opposite the vertical leg, angle labeled 80 degrees. Space Needle, with top at top right vertex.