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Geometry · Chapter 2 · Lesson 2.3 · Printable PDF

Two-column and Paragraph Proofs Worksheet with Answer Key

6 problems on two-column and paragraph proofs: giving reasons for each step, filling in missing statements, finding wrong reasons, and writing a proof as a paragraph. 4 pages, with a worked answer key.

6 problems4 pagesanswer key
Printable Two-column and paragraph proofs worksheet with answer key - Geometry (Page 1 PDF preview)
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What's on the worksheet

  1. Give the reason for each step and say what kind of reason it is.
  2. Complete a two-column proof that an angle measures 40 degrees.
  3. Write the missing statements for lines 5 to 11 of a segment proof.
  4. Find the two wrong reasons in a proof about an angle bisector.
  5. Write a paragraph proof that a linear pair of equal angles are right angles.
  6. Prove a fact about parallel lines and a transversal, with angles numbered 1, 5 and 6.

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The free lesson teaches it with worked examples and practice problems.

Two-column and paragraph proofs: the lesson ›

More Chapter 2 worksheets: Angle pairs, parallel lines and first proofs