標題範例:Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
In the figure above, x=60 and y=40 . If the dashed lines bisect the angles with measures of x° and y°, what is the value of z?
(A) 25
(B) 35
(C) 40
(D) 45
(E) 50
謎底:E
【剖析】