Law of Cosine Examples

Law of Cosine examples

5 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
To approximate the length of a lake, a surveyor starts at one end of the lake and walks 245 yards. He then turns 110º and walks 270 yards until he arrives at the other end of the lake. Approximately how long is the lake?
296 yards
Two ships leave port at 4 p.m. One is headed at a bearing of N 38 E and is traveling at 11.5 miles per hour. The other is traveling 13 miles per hour at a bearing of S 47 E. How far apart are they when dinner is served at 6 p.m.
36.2 miles
The distance on a map from the airport in Miami, FL to the one in Nassau, Bahamas is 295 kilometers due east. Bangor, Maine is northeast of both cities; its airport is 2350 kilometers from Miami and 2323 kilometers from Nassau. What bearing would a plane need to take to fly from Nassau to Bangor?
The plane should fly at a heading of 1.64º East of North.
a triangle ABC has side a = 4, side b = 7, and angle C = 54º. What is the measure of side C?
.        .
Triangle ABC that <A=29 degrees, b=5, and c= 7. Find the measure of side a.
Answer