1. Trig Review

2. For what value of radians or degrees is the cosθ decreasing?

4. If sinA=-2/3 and secA > 0
What quadrant is the triangle containing angle A in?
Find the values of the 5 missing trig functions.

8. http://cdn. kutasoftware

10. You are hiking along a river and see a tall tree on the opposite bank
You are hiking along a river and see a tall tree on the opposite bank. You measure the angle of elevation of the top of the tree and find it to be 61.0. You then walk 50 feet directly away from the tree and measure the angle of elevation. If the second measurement is 49.5, how tall is the tree? Round your answer to the nearest foot. 34

12. A support cable runs from the top of the telephone pole to a point on the ground 42.7 feet from its base. If the cable makes an angle of 29.6 with the ground, find (rounding to the nearest tenth of a foot)
the height of the pole
the length of the cable

13. Pole height 24 cable 49

14. From a point 115 feet from the base of a redwood tree, the angle of elevation to the top of the tree is 64.3o. Find the height of the tree to the nearest foot.
239

15. From a point 10 feet from the base of a flag pole, the angle of elevation to the top of the flag pole is 67.4o. Find the height of the flag pole to the nearest foot. 24

16. From a point A on a line from the base of the Washington Monument, the angle of elevation to the top of the monument is 42o. From a point further away, 100 feet away, and on the same line, the angle to the top is 37.8o. Find the approximate height of the Washington Monument.
622.1=d =h

17. The angle of depression of one side of a lake, measured from a balloon 2500 feet above the lake is 43o. The angle of depression to the opposite side of the lake is 27o. Find the width of the lake.
7587