I have the answer key for all of the questions in the last photo. I want to understand how to get the answer and I need to show work for it.

1. 2. Sketch a triangle that has acute angle :9, and find the other ve trigonometric ratios of 6. tan = Solve the right triangle. 33.5 Solve the following triangles with acute angles A and B and right angle C : (a) a = 33 b = 5 (b) C = 41, (1.: 40 (c) A = 36": a = 12 (d)B=:%r,c=425 An airplane is ying at an elevation of 5150 ft, directly above cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35" and to the other is 52". How far apart are the cars? A heliCOpter is sighted at the same time by ground observers who are 2 miles apart on the same side of the helicopter. They report angles of elevation as 21.50 and 28.60. How high, rounded to the nearest foot, is the helicopter? [Draw a picture ask if you need a hint] A security camera in a neighborhood bank is mounted on a wall 9 feet above the floor. What angle of depression should be used if the camera is to be directed to a spot 6 feet above the oor and 12 from the wall? 8. Find the area of a triangle with sides of length 7 and 9 and included angle 72. 9. Find the area of a triangle with sides of length 10, 22 and 24. 10. Find the area of the shaded region below. \\ 11. Find the values of the trigonometric functions of 6' if cos 9 : %, tan 9