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Unknown Angle Proofs

Unknown Angle Proofs. Geometry. Warm-up. Given the picture below solve for the value of a . Take it a step further. Given the labeled diagram at the right, can we prove that x + y = z . What is a proof?. Logical sequence of steps with justification (Deductive Reasoning)

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Unknown Angle Proofs

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  1. Unknown Angle Proofs Geometry

  2. Warm-up Given the picture below solve for the value of a.

  3. Take it a step further • Given the labeled diagram at the right, can we prove that x + y = z.

  4. What is a proof? • Logical sequence of steps with justification (Deductive Reasoning) • Begin with only the given information • Support each step with a property from algebra or geometry • End with what you are trying to prove

  5. Types of Proofs Paragraph Proof Flow Proof • 2 Column Proof

  6. Practice 1

  7. Practice 2

  8. Practice 3

  9. Lesson Check

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