Embedded Files
The Law of Sines and the Law of Cosines
The Law of Sines and the Law of Cosines
Sine Law
Cosine Law
Application of Sine Law and Cosine Law
Sine Law
Sine Law
STEPS:
- Plug numbers into sine law equation
- Solve
Real World Application
- A helicopter is hovering between two helicopter pads. The pilot knows that he flew into the air at a 70º angle to get to his current position. He also knows that the two pads are 50,000 feet apart. He wants to practice his descent so that he lands at a 65° angle.
If he were to start descending now, how many feet would he have to travel in descent to land at a 65° angle?
SAT Problem
Cosine Law
Cosine Law
STEPS:
- Plug into equation
- Sometimes, you will have to use both equations to find the missing variable
Cosine Law
Cosine Law Using Both Equations
Real World Application
Scientists in Houston are trying to figure out the distance from a satellite to Cape Canaveral. They know that the satellite is 530 miles from Houston at an 85º angle of elevation, and Houston and Cape Canaveral, in a straight line from one to the other, are 902 miles apart.
How far is the satellite from Cape Canaveral?
SAT Problem
Google Sites
Report abuse