Law of Sines Homework
Law of Sines & Cosines Homework Worksheet
Law of Sines: ______________________________________________________________________
Law of Cosines:______________________, ________________________, _____________________
Questions: Answer the questions and justify your answers.
|1. To use the Law of Sines, you must know the |2. Is it possible to solve a triangle if you |3. Why is it not generally possible to use the |
|measures of at least… |only know the measures of the three angles in the|Law of Sines to solve a triangle for which one |
| |triangle? |only knows the measures of all of the sides in a |
| | |triangle? |
| | | |
| | | |
| | | |
| | | |
|4. When should you use the Law of Cosines to |5. To solve a triangle in which two sides and the included angle are given, your tutor suggests |
|solve a triangle? |that you… |
| |Use Law of Cosines to find the largest angle. |
| |Use Law of Sines to find another angle. |
| |Find the third angle by using the formula 180° – A° – B° = C°. |
| |Why is this easier than using the Law of Cosines to find all of the angles of the triangle? |
| | |
| | |
|6. Compare and contrast when the given information to solve a triangle indicates using the Law of Sines versus using the Law of Cosines. |
| |
| |
| |
| |
Solve the triangles.
|7. β = = 82°, b = 6, c = 3 |8. α = 42°, a = 10, c = 18 |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
|9. γ = 32°, a = 14, c = 9 |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
|10. a = 4, b = 3, c = 6 |
| |
| |
| |
| |
| |
| |
| |
| |
|11. To find the distance across a canyon, a surveying team locates points |12. A surveyor walks 380 meters from point A to point B. Then the |
|A and B on one side of the canyon and point C on the other side of the |surveyor turns 80° to the left and walks 240 meters to point C, as in the |
|canyon. The distance between points A and B is 85 yards. The measure of |figure below. What is the approximate length of the marsh? |
|[pic]CAB = 68°, and the measure of [pic]ABC = 75°. What is the distance | |
|across the canyon? | |
| | |
| | |
| |B |
| | |
| | |
| |C |
| | |
| | |
| |A |
| | |
| | |
| | |
| | |
| | |
| | |
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- 12 13 cp pre calculus final exam review
- day 1 triangles and similarity
- law of sines homework
- math 2 unit 5 right triangles and trigonometry
- integrated algebra b
- 9tk solve right triangles
- math club worksheet 1 stanford university
- matt wolf central bucks school district
- right triangles and sohcahtoa finding the length of a side
Related searches
- law of sines and cosines calculator
- law of sines solver
- derivative of law of cosine
- law of cosines vs law of sines
- law of sines and cosines pdf
- examples of the first law of motion
- law of sines practice answers
- law of sines practice problems
- law of sines answer key
- examples of the second law of motion
- definition of newton s 3 law of motion
- law of sines and cos calculator