E. MATH CHAP 8 application of trigonometry completed:

E. MATH CHAP 8 application of trigonometry completed:

1. 8.1: BEARING PROBLEMS:

   • BEARING = angle of obj in relation to the reference point, AND MUST BE 3 DIGITS
   • angle MUST BE MEASURED IN THE CLOCKWISE DIRECTION FROM THE NORTH

2. 8.2: ANGLES OF ELEVATION AND DEPRESSION:

   • ANGLE OF ELEVATION = ANGLE formed by the HORIZONTAL AND THE LINE OF SIGHT ABOVE THE HORIZONTAL
   • angle formed by HORIZONTAL AND THE LINE OF SIGHT BELOW THE HORIZONTAL = ANGLE OF DEPRESSION
   • this 2 types of angles can be used to determine the height of an inaccessible object

3. 8.3: SIMPLE THREE-DIMENSIONAL PROBLEMS