选择题
2003 AMC 8 Problem 10: Trisha's Cookie Count
Problems 8, 9 and 10 use the same cookie-shape data. Four friends, Art, Roger, Paul and Trisha, bake cookies of the same thickness. Art's cookies are trapezoids, Roger's are rectangles, Paul's are parallelograms, and Trisha's are triangles, as shown. How many cookies will be in one batch of Trisha's cookies?
A.
10
B.
12
C.
16
D.
18
E.
24