AMC 8 L2: Basic Geometry

Complete problem set with solutions and individual problem pages

Problem 3 Medium

Four friends, Art, Roger, Paul and Trisha, bake cookies, and all cookies have the same thickness. The shapes of the cookies differ, as shown.

\bigcirc Art’s cookies are trapezoids:

\bigcirc Roger’s cookies are rectangles:

\bigcirc Paul’s cookies are parallelograms:

\bigcircTrisha’s cookies are triangles:

Each friend uses the same amount of dough, and Art makes exactly 12 cookies.

(2003 AMC8 Problem, Question #8, #9, #10)

Answer: