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Chapter 6 Review

Chapter 6 Review. DEFINITION OF INEQUALITY. Difference in size, degree or congruence. 7 0. B. 20. A. ADDITION POI. THEN. IF and. EXAMPLE:. IF and. THEN. Multiplication POI. THEN. IF and. EXAMPLE:. IF and. THEN.

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Chapter 6 Review

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  1. Chapter 6 Review

  2. DEFINITION OF INEQUALITY • Difference in size, degree or congruence 70 B 20 A

  3. ADDITION POI THEN IF and EXAMPLE: IF and THEN

  4. Multiplication POI THEN IF and EXAMPLE: IF and THEN

  5. Multiplication POI THEN IF and EXAMPLE: IF and THEN

  6. DIVISION POI THEN IF and EXAMPLE: IF and THEN

  7. DIVISION POI THEN IF and EXAMPLE: IF and THEN

  8. Transitive POI THEN IF and EXAMPLE: IF and THEN

  9. POI THEN IF and EXAMPLE: IF and THEN

  10. Exterior angle inequality theorem The measure of an exteriorangle of a triangle is greater than the measure of eitherremoteinterior angle. and 2 1 4

  11. Indirect Proofs 1. Assume temporarily that the conclusion is nottrue. 2. Reason logically until you reach a contradiction of a known fact. 3. State that the temporaryconclusion is false. 4. Therefore the original conclusion must be true.

  12. THEOREM: If one side of a triangle is longer than a second side, then the angle opposite the first side is larger than the angle opposite the second side. What you need to understand: The angle opposite the longest side in a triangle is the largest angle. <B is opposite the largest side. Therefore, <B is the largest angle. B 10 4 A C 12

  13. Conversely, the largestside is across from the largestangle. AC is the longest side. 85 B 65 30 A C

  14. Triangle Inequality Theorem The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

  15. SAS Inequality Theorem If two sides of one triangle are congruent to two sides of another triangle, but the included angle of the first triangle is larger than the included angle of the second, then the third side of the first triangle is longer than the third side of the second triangle.

  16. SSS Inequality Theorem If two sides of one triangle are congruent to two sides of another triangle, but the third side of the first triangle is longer than the third side of the second, then the included angle of the first triangle is larger than the included angle of the second.

  17. HOMEWORK • PG 630 • 1-12 all • PG 631 • 1-11 (omit 4, 5 and 8) • Worksheets (green and blue)

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