Ex 23:
(no solution) Find b if A = 42°, a = 70 and c = 122.
Applications:
Ex 24: A tree on a hillside casts a shadow 215 ft down the hill. If the angle of
inclination of the hillside is 22o to the horizontal and the angle of elevation
of the sun is 52o, find the height of the tree.
1
Ex 25: Observers at P and Q are located on the side of a hill that is inclined 32o
to the horizontal, as shown. The observer at P determines the angle of
elevation to the hot air balloon to be 62o. At the same instant, the
observer at Q measures the angle of elevation to the balloon to be 71o.
If P is 60 m down the hill from Q, find the distance from Q to the
balloon.
2