752 CHAPTER 8 FURTHER APPLICATIONS OF TRIGONOMETRY CHAPTER 8 REVIEW EXERCISES NON-RIGHT TRIANGLES: LAW OF SINES For the following exercises, assume a is opposite side a, B is opposite side b; and y is opposite side c. Solve each triangle, if possible. Round each answer to the nearest tenth. 1. B = 50, a = 105, b=45 2. a = 43.10, a = 184.2, b = 242.8 3. Solve the triangle. 4. Find the area of the triangle. 360 750 11 16 240 5. A pilot is flying over a straight highway. He determines the angles of depression to two mileposts, 2.1 km apart, to be 250 and 490, as 250 shown in Figure 1. Find the distance of the plane from point A and 490 the elevation of the plane. A Figure 1 NON-RIGHT TRIANGLES: LAW OF COSINES 6. Solve the triangle, rounding to the nearest tenth, assuming a is opposite side a, B is opposite side b, and y is opposite side c: a = 4, b = 6, c = 8