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Home > GC > Chapter 12 > Lesson 12.1.1 > Problem 12-11

12-11.

Multiple Choice: In the diagram at right, the value of is:  

  1.  

  1.  

  1.  

  1.  

  1. none of these

 Two parallel segments, the top 9 units long and the bottom 6 units long, have a segment connecting the left endpoints and extending downward until it meets with the segment that connects the right endpoints extending downward, the distance between the 2 parallel segments is, x, and the distance between the bottom parallel line and where the left & right segments meet is 4.

The diagram contains similar triangles. Use this fact to set up a proportion.

b. 2