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Unit # 1 Vocabulary Review

Unit # 1 Vocabulary Review. coordinate plane. a plane (2 dimensional) formed by intersection of horizonal line ( x axis) of vertical line (y axis). ordered pair - numbers that identify - a point on - a coordinate plane. Why does this represent a plane?. plane flat surface

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Unit # 1 Vocabulary Review

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  1. Unit # 1 Vocabulary Review

  2. coordinate plane

  3. a plane (2 dimensional) • formed by intersection • of horizonal line ( x axis) • of vertical line (y axis)

  4. ordered pair - numbers that identify - a point on - a coordinate plane

  5. Why does this represent a plane?

  6. plane • flat surface • extends infinitely in all directions • has two dimensions

  7. A? B? C?

  8. measure of angle What unit is used to measure an angle?

  9. Degrees

  10. Why type of angle? A? B? C? D? E? F?

  11. Right Angle

  12. acute angle • an angle • whose measure • is less than 90 degrees

  13. obtuse angle • an angle • whose measure is • greater than 90 degrees but • less than 180 degrees

  14. Why are these obtuse angles? Obtuse angle

  15. What type of angle?

  16. What type of angles?

  17. complementary angles complementary angles two angles whose measures add to 90 degrees

  18. supplementary angles? vertical angles? congruent angles?

  19. supplementary angles two angles whose measures have a sum of 180 degrees

  20. Why are figure 1 and figure 2 both examples of supplementary angles?

  21. vertical angles a pair of opposite congruent angles formed by intersecting lines

  22. congruent angles angles that have the same measure

  23. What concept do these figures represent?

  24. line of symmetry the imaginary “mirror” in line symmetry

  25. transformation - transform a change in the size or position of a figure

  26. transformations (transform) translations (translate) rotations (rotate) reflections (reflect)

  27. reflection

  28. translation

  29. rotation

  30. translation

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