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Level 80

Geometry II: Angles

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complimentary angle
sum of two angles up to 90 degrees
supplementary angle
sum of two angles measure 180 degrees
vertical angle
pair of opposite congruent (equal) angles formed by intersecting lines
parallel lines
2 lines that never cross/intersect and stay the same distance apart
transversal line
line that intersects 2 parallel lines
Interior angle
angle on the inside of intersected parallel lines
Exterior angle
angle on the outside of intersected parallel lines
corresponding angle
2 angles in matching corners.
alternate interior angle
2 interior angles on opposite sides on the transversal that have the same measure.
alternate exterior angle
2 exterior angles on opposite sides of the transversal that have the same measure
congruent angle
angles that have the same measures