Pre-Calc/Trig 3
Law of Sines and Cosines Practice
Name ____________________________________
Solve each triangle using the Law of Sines and/or the Law of Cosines
1. In triangle EFG, mF  37 , e = 48in and mG  51 .
Triangle
1
Triangle
2
2. In triangle TUV, mU  63 , t = 121mi and u = 104mi
Triangle
1
3. In triangle LMN, l = 34ft, m = 43ft and n = 79ft.
Triangle
2
Triangle Triangle
1
2
4. In triangle EFG, mF  114 , e = 43m and g = 68m.
Triangle
1
Triangle
2
Triangle Application Problem:
1. A pilot has just started on the glide path for landing at an airport with a runway of length 9000 ft. The angles
of depression from the plane to the ends of the runway are 18 and 20 degrees. Find the travel distance (in air)
for the plane to touch down on the near end of the runway.
Pre-Calc/Trig 3
Law of Sines and Cosines Practice
Name ____________________________________
Solve each triangle using the Law of Sines and/or the Law of Cosines
1. In triangle EFG, mF  37 , e = 48in and mG  51 .
Triangle
1
Triangle
2
2. In triangle TUV, mU  63 , t = 121mi and u = 104mi
Triangle
1
3. In triangle LMN, l = 34ft, m = 43ft and n = 79ft.
Triangle
2
Triangle Triangle
1
2
4. In triangle EFG, mF  114 , e = 43m and g = 68m.
Triangle
1
Triangle
2
Triangle Application Problem:
1. A pilot has just started on the glide path for landing at an airport with a runway of length 9000 ft. The angles
of depression from the plane to the ends of the runway are 18 and 20 degrees. Find the travel distance (in air)
for the plane to touch down on the near end of the runway.