Geometry · Chapter 7 · Lesson 7.4 · Printable PDF

Triangle Proportionality Theorem Worksheet with Answer Key

8 problems on the triangle proportionality theorem: parallel segments cutting triangle sides, finding an error, trapezoid segments, extended sides, solving for x, property lots on a map, and bookcase shelves. 2 pages, with a worked answer key.

8 problems2 pagesanswer key
Printable Triangle proportionality theorem worksheet with answer key - Geometry (Page 1 PDF preview)
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What's on the worksheet

  1. Find lengths along Hannah's pennant stripe parallel to the pole.
  2. Explain what is wrong with Hannah's proportion and find EC correctly.
  3. Find BF and FC in a trapezoid and name the result used.
  4. Find x, AB and BC from a parallel segment and decide what kind of segment it is.
  5. Find CE and AE when a parallel segment lies outside the triangle.
  6. Write the proportion that must hold if NP is parallel to KM and find x.
  7. Find the missing lot widths along River Road from the lots on Front Street.
  8. Find the shelf spacing along the side panel using four parallel shelves.

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