Chapter+4+Period+1

=Chapter 4: Solving Oblique Triangles = = =

Videos Solving Area of a Triangle media type="file" key="Area of a T SS DH.m4v" width="581" height="581" Solving Triangles using Law of Cosines media type="file" key="Law of Cosines -SS DH.m4v" width="600" height="600" Solving Triangles using Law of Sines media type="file" key="Law of Sines SS-DH.m4v" width="600" height="600" When they find side C on the first triangle they used Pythagorean Theorem, which can only be used when you have a right triangle. To solve for side C you need to use Law of Sines. They did this the correct way when they were solving for their second triangle. The length of the side C in triangle one is correct, they just used the wrong approach to get their answer.

Worksheets:


 * //__Finding Area:__//**

__//**The Law of Cosine and Sine**//__

__//**Answer sheets**//__
 * 1) 2 the beginning of the problem is wrong. The steps are correct from number 5 to 8. They have the correct answer.
 * 2) 4 is the wrong problem. The correct answer is 25.28.