1. Section 13.1.b Solving Triangles

2. 7.) Find the angle Ɵ if cos Ɵ = 0.9659 (Read as “the angle whose cos is:___”) Be sure you know the mode your calculator is in: degrees or radians Be sure you know the mode your calculator is in: degrees or radians cos  = 0.9659

3. 8.) Find the angle α if sin α = 0.7590

4. 9.) Solve the triangle Find the value of all the sides and all the angles Find the value of all the sides and all the angles 12 15 A C B 9

5. 10.) Find tan A when cos A = Make a figure showing what you know Soh-Cah-Toa A B C a = ? 13 10

6. 11.) The Aerial run at snowbird is 8395 feet long. The vertical drop is 2900 feet. Estimate the angle of elevation of the run 2900 ft 8395 ft

7. Homework Practice Worksheet 13-1 #2-10 evens and Page 778 Problems: 25-33 all