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Updated: 9/28/2020
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  • I have geometry homework that's due tomorrow but I don't understand geometry two-column proofs!
  • Geometry
  • Geometry Help now!
  • Hi, I'm Bella, and today, I am going to be teaching you about geometry two-column proofs. Let's get started!
  • A paragraph proof is a type of proof that explains the rationale for each step using complete sentences in paragraph form. Oftentimes, before creating a paragraph proof, most people put it into two-column proofs first to make it easier to organize.
  • There are two many different types of proofs used in geometry but the two most common used proofs, are paragraph proofs and two-column proofs. Two- column proofs is a table with two columns; the first column is the mathematical statement, and the second column is the justification.
  • Now that you know the definition of two-column proofs let's get to an example,now shall we. Lets begin with something easy, algebraic proofs.
  • Statements Reason5(x+7)=2x+2 Given 5x+35=2x+2 Distributive property 3x=2-35 Subtraction Property of Equality 3x=-33 Subtraction Property of Equalityx=-11 Division property of Equality
  • Don't forget to describe what your doing. Use mathproperties to do so.
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