Questions and Answers
What are Complementary Angles?
What are Supplementary Angles?
What are Vertical Angles?
Pairs of opposite angles made by two intersecting lines.
What defines Adjacent Angles?
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What is a Linear Pair of Angles?
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What are Corresponding Angles?
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What are Alternate Interior Angles?
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What are Alternate Exterior Angles?
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What does the Same Side Interior Angle Theorem state?
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What are Same Side Exterior Angles?
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Study Notes
Special Angle Pairs in Geometry
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Complementary Angles: Two angles with a sum of 90°.
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Supplementary Angles: Two angles that add up to 180°.
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Vertical Angles: Formed by the intersection of two lines; they are opposite angles and are equal.
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Adjacent Angles: Share a common side and vertex without overlapping; for example, angles ABC and CBD share side CB and vertex B.
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Linear Pair: Created when two intersecting lines form adjacent angles; together, they total 180°.
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Corresponding Angles: Located at the same relative position at each intersection when two lines are crossed by another line; equal when the lines are parallel.
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Alternate Interior Angles: Occur on opposite sides of a transversal crossing two lines; these angles are located inside the lines.
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Alternate Exterior Angles: Formed on opposite sides of a transversal and outside the two intersected lines.
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Same Side Interior Angles: When two parallel lines are cut by a transversal, these angles are supplementary, adding up to 180°.
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Same Side Exterior Angles: Created when parallel lines are intersected by a transversal; located outside the parallel lines on the same side and are also supplementary.
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Test your knowledge of special angle pairs with these geometry flashcards. Learn about complementary, supplementary, vertical, and adjacent angles. Perfect for reinforcing geometry concepts and definitions.