Assignment 12

1. Convert from degrees to radians:

a. 45°

b. 60°

c. 140°

d. 720°

2. Convert from radians to degrees:

a. o/3

b. 5o/6

c. 1

d. 16o/5

3. Solve and sketch the following triangles. In each, A,B,C, represent the angles, and a,b,c are the sides opposite the corresponding angle.

a. A = 30°, B = 110°, c = 2

b. a = 4, b = 6, c = 8

c. A = 45°, b = 2, c = 3

4. Attempt to solve the following triangles. What do you find? Explain.

a. A = 35°, b = 4, a = 3

b. A = 40°, b = 6, a = 3

c. A = 50°, b = 3, a = 5

5. On the unit circle, mark all points representing angles h with

a. sin(h) = .2

b. cos(h) = -.9

c. tan(h) = 3