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Home > GC > Chapter 12 > Lesson 12.2.2 > Problem 12-66


A quadrilateral A, D, C, B, where A, B is x and B,C is 12, and D, C is 10. This quadrilateral is connected to D, E, F, C, where C, F is 15 and E, F, is y.In the diagram at right, . Solve for and . Show all work.  

Set up proportions to find these lengths.