DDN
Trigonometry class conducted a surveying project as part of a unit on sine, cosine, and tangent. Students calculated the heights of a nearby church steeple, and telephone pole.
Height of Church Calculation: Angle of elevation: 7.5 degrees Baseline distance 390 feet Height of instrument 4.75 feet
h=390*tan(7.5)= 51.3 feet
Height of building = h + height of instrument = 51.3 + 4.75 = 56.05 feet
Height of Telephone Pole Calculation: Angle of elevation: 25 degrees Baseline distance 50 feet Height of instrument 4.75 feet
h=50*tan(25)= 23.3 feet
Height of building = h + height of instrument = 23.3 + 4.75 = 28.05 feet
