Complementary and Supplementary Angles

Solve problems involving complementary and supplementary angles
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Questions #: 10
Time: 10 minutes
Pass Score: 80.0%
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Two angles are complementary angles when the sum of their measures is \(180^o\)

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Two angles are supplementary angles when the sum of their measures is \(90^o\)

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Complementary angles need to be adjacent angles

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Supplementary angles need not be adjacent angles

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The following angles in the diagram are complementary angles

∠ABC and ∠CBD are complementary angles

complementary_angles.jpg

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Angles X and Y are not complementary

 

complementary_angles_not_adjacent.jpg

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Supplementary angles or not?

In figure below, ∠MNO and ∠ONP are supplementary angles

supplementary_angles.jpg

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Supplementary angles or not?

In the below figure ∠G and ∠H are not supplementary angles because they are not adjacent

supplementary_angles_2.jpg

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The three angles in the below figure are supplementary angles

 

non-supplementary-angles.jpg

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Find the complement and supplement of the following angles

  1. 35o angle has a complement angle of measure
  2. 105o angle has a supplement angle of measure
  3. 50o angle has a complement angle of measure
  4. 50o angle has a supplement angle of measure
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Explanation

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sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 – M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC

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