Review Questions To get full credit on your homework you must show all work for the review question(s) below: 1.) What is the length of CB if: In the diagram below, AF, and DB intersect at C, and AD and FBE are drawn such that m/D = 65°, m/CBE = 115°, DC-7.2, AC-9.6, and FC-21.6. CB 3.2 4.8 16.2 F 19,2 21.6 7.2 65° C X 9.6 115° A E B C

In ABC, the midpoints of the sides are joined. a what does intuition suggest regarding the relationship between AED and FDE? We will prove this relationship later. b what does intuition suggest regarding AED and EBF.

Refer to the following figure in answering Exercises 7 through 13. It may be helpful to sketch figures.When side y=side r. a. What is the value of the sine function? b. What is the value of the cotangent function? c. What is the value of the cosine function? d. What is the value of the cosecant function?

Refer to the following figure in answering Exercises 7 through 13. It may be helpful to sketch figures.When side x= side y. a. What is the value of 1 ? b. What is the value of the tangent function? c. What is the value of the cotangent function?

Albert lives in New Orleans. At noon on a summer day, the angle of elevation of the sun is 84. The window in Alberts room is 4.0 feet high and 6.5 feet wide. (Sec Figure 24.) a. Calculate the area of the floor surface in Alberts room that is illuminated by the sun when the angle of elevation of the sun is 84. b. One winter day the angle of elevation of the sun outside Alberts window is 37. Will the illuminated area of the floor in Alberts room be greater on the summer day, or on the winter day? Figure 24