Angle relationships

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Intros
Lessons
  1. What are supplementary angles?
  2. What are complementary angles?
  3. What are vertical angles?
  4. What are adjacent angles?
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Examples
Lessons
  1. Application of Supplementary Angles MATH7 17 1 1

    Find the value of xx.

  2. Complementary Angles on Polygons MATH7 17 1 2

    Which of the following pair(s) is/are complementary angles?

    1. ABD\angle ABD and ACD\angle ACD
    2. ABC\angle ABC and CBD\angle CBD
    3. ACB\angle ACB and CBD\angle CBD
  3. MATH7 17 1 3

    Which of the following pair(s) is/are complementary angles?

    1. CDB\angle CDB and ADB\angle ADB
    2. ABD\angle ABD and CBD\angle CBD
    3. BCD\angle BCD and BAD\angle BAD
  4. Application of Complementary Angles MATH7 17 1 4

    If AOB=9x+29\angle AOB=-9x+29 and BOC=2x+82\angle BOC=2x+82, find the value of xx.

  5. Proving Vertical Angles Using Supplementary Angles

    Use the idea of supplementary angles to prove for vertical angles.

  6. Application of Vertical Angles MATH7 17 1 6

    Given that m=\angle m=43°, find the remaining angles in the diagram.

  7. MATH7 17 1 7

    Given that AOC\angle AOC=125° and DOE\angle DOE=35°.

    1. Find BOC.\angle BOC.
    2. Find EOB.\angle EOB.
  8. MATH7 17 1 8

    If AOD\angle AOD=3x+14 and BOC\angle BOC=7x-18, find the value of x.

  9. Understanding Adjacent Angles

    What of the following is/are adjacent angles?

    1. MATH7 17 1 9a
    2. MATH7 17 1 9b
    3. MATH7 17 1 9c
    4. MATH7 17 1 9d
  10. Finding Adjacent Angles MATH7 17 1 10

    AOB\angle AOB=30°, AOC\angle AOC=100°.

    1. Are AOB\angle AOB and AOC\angle AOC adjacent?
    2. Find an angle that is adjacent to AOB\angle AOB.