Angle Relationships

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What are Adjacent Angles?

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Adjacent angles are two angles that share a common vertex and a common side, but do not overlap.

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What are Linear Pair Angles?

Back

Linear pair angles are two adjacent angles whose non-common sides form a straight line, summing up to 180 degrees.

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What are Complementary Angles?

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Complementary angles are two angles whose measures add up to 90 degrees.

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What are Supplementary Angles?

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Supplementary angles are two angles whose measures add up to 180 degrees.

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What are Vertical Angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

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What is a Transversal?

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A transversal is a line that intersects two or more lines at different points.

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What are Corresponding Angles?

Back

Corresponding angles are angles that are in the same position at each intersection where a transversal crosses two lines.

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What are Same Side Interior Angles?

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Same side interior angles are pairs of angles on the same side of the transversal and inside the two lines.

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What are Alternate Exterior Angles?

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Alternate exterior angles are pairs of angles that are on opposite sides of the transversal and outside the two lines.

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