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Published byBridget Fitzgerald Modified over 9 years ago
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Any two angles whose sum is 180 degrees. Supplementary Angles
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70+x=180 x=110 Example:
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Complementary Angles Any two angles whose sum is 90 degrees.
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Example: x+(x+30)=90 2x+30=90 2x=60 x=30
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Two angles across from each other on intersecting lines. They are always congruent! Vertical Angles
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Examples: b= ____ degrees
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Adjacent Angles Two angles that are next to each other and share a common side.
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Example: Common side
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Linear Pair Two angles that are adjacent and supplementary. They form a straight line!
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Example: 9x+3x=180 12x=180 X=15
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Evaluation 1)What is the value of x? A.84 degrees B.24 degrees C.21 degrees D.62 degrees
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Evaluation 1)What is the value of x? A.66 degrees B.132 degrees C.21 degrees D.52 degrees
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Evaluation 1)What is the value of x? A.66 degrees B.55 degrees C.21 degrees D.12 degrees
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