
Directions: Read carefully. You may want to draw a right triangle to examine these situations. These problems deal with trigonometry in right triangles in Quadrant I. Choose the best answers.
1. 
In the triangle shown at the right, which ratio represents cos C ? 



3. 
Which ratio represents sec A in the triangle shown at the right?




4. 
In the triangle shown at the right, CT = 6,
CA = 3 and m∠CAT = 90. What is the value of cot C ? 



5. 
In ΔDOG shown at the right, OG = 7,
DG = 8 and m∠DOG = 90. What is the measure of ∠G to the nearest minute?




6. 
Assume 0º < θ < 90º.


Choose:


7. 
Assume 0º < θ < 90º.




8. 
Assume 0º < θ < 90º.




9. 
Find to the nearest degree, the measure of an acute angle formed by the xaxis and the line containing the points (4,3) and (8,9).




10. 
A small loading ramp for restaurant deliveries is to be inclined no more than 5.7º. If the base of the ramp begins 8 feet from the doorway step, which of the following choices can be used to determine the maximum height, h, of the ramp where it reaches the doorway step? 



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