IB Math Studies: Classwork 14 – Chapter 10 Name:______Period:______

1. Assign the proper trigonometric ratio for each of the angles f and q. [1 pt each]

sin f = ______ / sin q = ______ /
cos f = ______ / cos q = ______
tan f = ______ / tan q = ______

2. Using the 30° angle on the figure below:

a. label the hypotenuse, opposite and adjacent sides. [2 pts]

b. determine, to 2 decimal places, the value of y. You must so ALL work in order to receive full credit [2 pts]

3. Using angle 1 on the figure below:

a. label the hypotenuse, opposite and adjacent sides. [2 pts]

b. determine, to 2 decimal places, the value in degrees of angle 1. You must so ALL work in order to receive full credit [2 pts]

3. The diagram shows a point P, 12.3 m from the base of a building of height h m. The angle measured to the top of the building

from point P is 63°. You must so ALL work in order to receive full credit [3 pts]

4. A 42 m ladder leans against a wall. The bottom of the ladder is 16 m from the wall. What angle does the ladder make with the

ground? You must so ALL work in order to receive full credit [3 pts]

20 / 7 / 16 / 4.6 / 12 / 3 / 8 / 2 / 4 / 1
19.5 / 6.8 / 15.5 / 4.4 / 11.5 / 2.9 / 7.5 / 1.9 / 3.5 / 0.9
19 / 6.4 / 15 / 4.1 / 11 / 2.7 / 7 / 1.7 / 3 / 0.7
18.5 / 6 / 14.5 / 4 / 10.5 / 2.6 / 6.5 / 1.6 / 2.5 / 0.6
18 / 5.7 / 14 / 3.7 / 10 / 2.5 / 6 / 1.5 / 2 / 0.5
17.5 / 5.4 / 13.5 / 3.6 / 9.5 / 2.4 / 5.5 / 1.4 / 1.5 / 0.4
17 / 5.1 / 13 / 3.3 / 9 / 2.2 / 5 / 1.2 / 1 / 0.2
16.5 / 4.9 / 12.5 / 3.2 / 8.5 / 2.1 / 4.5 / 1.1 / 0.5 / 0.1
STANDARD / WEIGHT
1 / / 20 / / 7