MY GRADE DEPENDS ON THIS! PLEASE HELP I WILL GIVE A MEDAL!!!!!!!!!! A surveyor crew is given the job of measuring the depth of a canyon. From a point on level ground the angle of depression to the bottom of the canyon is 32degrees and 23minutes. If they back up 207 feet they still have a clear view of the bottom, but the angle of depression has changed to 14degrees and 21minutes. What is the depth of the canyon?

Question

anonymous · Answer

Make a triangle, with two angles and with the ground the included side.

Use Law of Sines to find other two side lengths.

Draw line from vertex at bottom to ground side, making right triangles. Find dimensions using c^2 = a^2 + b^2, etc.