What you will need;
Pen or pencil
Step 1: Pick a spot
Step 2: Measure angle
From my spot, my clinometer (read by my assistant) showed 55°. Subtracting from 90°, that indicated that I looked at an angle of 35° to the top of the telephone pole.
Step 3: Measure distance
My spot was 15.6 meters from the base of the telephone pole I measured.
Step 4: Find your eye-height
My eye height was recorded for this example as 1.64 meters.