In Figure 3. Triangle ABC is inscribed in a semicircle. If BD=6 and CD=4, what is the area of triangle ABC?
(A) 78
(B) 39
(C) 36
(D) 32
(E) 25
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Which of the following comparisons is true? a: high school tests generally cover more material than college exams. b: your college curriculum is more fixed and standardized than your high school curriculum. c: you get more personal attention in class from your college professors than from your high school teachers. d: college professors usually don't review test material in class the way high school teachers do.