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18 Cards in this Set
- Front
- Back
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Acute Angle
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Any angle with a measure greater than 0 and less than 90 degrees
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Obtuse Angle
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Any angle with a measure greater than 90 but less than 180 degrees
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Right Angle
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An angle that measures exactly 90 degrees
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Straight Angle
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An angle that measures exactly 180 degrees
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Corresponding Angles
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Angles that have the same position on two different parallel lines cut by a transversal
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Supplementary Angles
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Two angles are supplementary if the sum of their measures is 180 degrees
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Parallel Lines
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Two lines in the same plane that do not intersect
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Perpendicular Lines
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Lines that intersect to form a right angle
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Transversal
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A line that intersects two parallel lines to form eight angles
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Adjacent Angles
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Two angles that have the same vertex, share a common side, and do not overlap
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Vertical Angles
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Two pairs of opposite angles formed by two intersecting lines. The angles formed are congruent.
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Alternate Exterior Angles
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Nonadjacent exterior angles found on opposite sides of the transversal
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Alternate Interior Angles
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Nonadjacent interior angles found on opposite sides of the transversal
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Midpoint
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On a line segment, the point that is halfway between the end points
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Bisect
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To divide into two congruent parts
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Bisector
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The ray or line that divides an angle into two congruent angles
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Perpendicular Bisector
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The ray or line that divides an angle into right angles
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Complementary Angles
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Two angles are complementary if the sum of their measures is 90 degrees
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