Chapter 8.1 8.4 review
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Chapter 8.1 8.4 review Presentation Transcript

  • 1. Daily Homework Quiz For use after Lesson 8.2 1. What is an acute triangle? 2. Can a right triangle be isosceles?
  • 2. Daily Homework Quiz For use after Lesson 8.2 1. What is an acute triangle? 2. Can a right triangle be isosceles? ANSWER a triangle with three acute angles ANSWER yes
  • 3. 8.1 – 8.4 Review
  • 4. Essential Questions
    • Why is it important to be able to identify congruent triangles in everyday life?
    • Where in real life can you use the properties of isosceles and equilateral triangles?
    • How are the relationships between lines and planes used in the real world?
    • What areas in the real world are properties of parallel lines important?
  • 5. Vocabulary Review A quick check on vocabulary from this unit.
  • 6.
    • An angle that measures between 1 & 90 °
    • The angles whose sum is 180 °
    • An angle that measures exactly 180 °
    • A triangle with exactly one 90 ° angle
    • A flat surface that extends infinitely
    • An angle that measures between 90 &180 °
    • Has one endpoint and extends infinitely in one direction
  • 7.
    • An angle that measures between 1 & 90 °
    • The angles whose sum is 180 °
    • An angle that measures exactly 180 °
    • A triangle with exactly one 90 ° angle
    • A flat surface that extends infinitely
    • An angle that measures between 90 &180 °
    • Has one endpoint and extends infinitely in one direction
    supplementary straight right plane obtuse ray
  • 8.
    • 8. A five-sided polygon
    • 9. A 10-sided polygon
    • 10. A triangle with 3  sides
    • 11. A quadrilateral with 2 pairs of parallel sides
    • 12. A triangle with no  sides
    • 13. A quadrilateral with exactly one pair of parallel sides
  • 9.
    • 8. A five-sided polygon
    • 9. A 10-sided polygon
    • 10. A triangle with 3  sides
    • 11. A quadrilateral with 2 pairs of parallel sides
    • 12. A triangle with no  sides
    • 13. A quadrilateral with exactly one pair of parallel sides
    pentagon decagon equilateral parallelogram scalene trapezoid
  • 10.
    • 14. A parallelogram with 4  sides
    • 15. A quadrilateral with 4  90 degrees angles
    • 16. Connects two vertices of a polygon that do not share a side
    • 17. A six-sided figure
    • 18. A seven-sided figure
  • 11.
    • 14. A parallelogram with 4  sides
    • 15. A quadrilateral with 4  90 degrees angles
    • 16. Connects two vertices of a polygon that do not share a side
    • 17. A six-sided figure
    • 18. A seven-sided figure
    rhombus Rectangle diagonal hexagon heptagon
  • 12.
    • 19. Two angles whose sum is 90 °
    • 20. Has two endpoints, can be measured, and is a part of a line
    • 21. Angles formed when two lines intersect and are always congruent
  • 13.
    • 19. Two angles whose sum is 90 °
    • 20. Has two endpoints, can be measured, and is a part of a line
    • 21. Angles formed when two lines intersect and are always congruent
    complementary Line segment vertical
  • 14.
    • 22. A line that crosses two or more lines
    • 23. Lines (on same plane) that never intersect
    • 24. Lines that meet at 90° angles
    • 25. The point where two rays meet and form an angle
    • 26. A many-sided figure
  • 15.
    • 22. A line that crosses two or more lines
    • 23. Lines (on same plane) that never intersect
    • 24. Lines that meet at 90° angles
    • 25. The point where two rays meet and form an angle
    • 26. A many-sided figure
    transversal parallel perpendicular vertex polygon
  • 16.
    • 27. A polygon with 8 sides
    • 28. A polygon with all congruent sides and all congruent angles
    • 29. A polygon that does not have all congruent sides or angles
  • 17.
    • 27. A polygon with 8 sides
    • 28. A polygon with all congruent sides and all congruent angles
    • 29. A polygon that does not have all congruent sides or angles
    octagon Regular polygon Irregular polygon
  • 18.
    • Name a pair of:
    • Vertical angles
    • Corresponding
    • Alt. Interior
    1 4 2 3 5 8 6 7
  • 19.
    • Name a pair of:
    • Vertical angles
    • Corresponding
    • Alt. Interior
    1 and 3, 2 and 4 5 and 7, 6 and 8 1 and 5, 2 and 6 3 and 7, 4 and 8 2 and 8, 3 and 5 1 4 2 3 5 8 6 7
  • 20.
    • Name a pair of:
    • Alt. Exterior
    • Supplementary
    1 4 2 3 5 8 6 7
  • 21.
    • Name a pair of:
    • Alt. Exterior
    • Supplementary
    1 and 7, 4 and 6 1 and 4, 4 and 3, 3 and 2, 1 and 2, 5 and 8, 8 and 7, 7 and 6, 6 and 5 1 4 2 3 5 8 6 7
  • 22. Find all angle measures 1 3 t 113  2 5 6 7 8 113  113  113 
  • 23. Find all angle measures 1 67  3 t 113  180 - 67 2 5 6 7 8 67  67  67  113  113  113 
  • 24. Homework
    • Page 808 #1-11
    • Test tomorrow!
    • All late work due tomorrow!