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GBK Geometry

GBK Geometry. Jordan Johnson. Today’s plan. Greeting Review Asg #17 Practice Quiz Lesson Homework / Questions Clean-up. Practice Quiz (~5 min). For each of these statements, name the postulate, definition, or theorem that justifies the statement: If x + 1 = 2 x , then 1 = x .

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GBK Geometry

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  1. GBK Geometry Jordan Johnson

  2. Today’s plan • Greeting • Review Asg #17 • Practice Quiz • Lesson • Homework / Questions • Clean-up

  3. Practice Quiz (~5 min) • For each of these statements, name the postulate, definition, or theorem that justifies the statement: • If x + 1 = 2x, then 1 = x. • If x⁄3 – 6 = 3, then x⁄3 = 9. • If A + B = 70° and A + B + C = 180°,then 70° + C = 180°. • If X-Y-Z, then XY + YZ = XZ. • Let d be the distance between A and B.

  4. Practice Quiz Solutions • For each of these statements, name the postulate, definition, or theorem that justifies the statement: • If x + 1 = 2x, then 1 = x. The subtraction property • If x⁄3 – 6 = 3, then x⁄3 = 9. The addition property • If A + B = 70° and A + B + C = 180°,then 70° + C = 180°. The substitution property • If X-Y-Z, then XY + YZ = XZ.The Betweenness of Points Theorem • Let d be the distance between A and B.The Ruler Postulate

  5. Assignments • For Wednesday:Asg #18 • For Thursday:Asg #19 and Unit 2 Test Analysis

  6. Clean-up / Reminders • Pick up all trash / items. • Push in chairs (at front and back tables). • See you tomorrow!

  7. Practice Quiz • When you are finished, put away your pencil and take out two pens/pencils of different color for corrections. • First color = careless mistakes / “I knew that!” • Second color = things not understood / “I should review this!” • Come to my desk to pick up a solutions sheet,and check your work. • When you’re done with the solutions sheet, bring it back to me.

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