1.2 Angles

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22 cards submitted by Olesia Sutterlin on Monday, September 11th, 2023.

Angle, degrees, measure of an angle, congruent, sides of an angle, angle addition, angle bisector, incoming and outgoing angle, reflex measure, vertex, protractor, right angle, acute angle, obtuse angle, complementary angle, supplementary angles, vertical angles, linear pair of angles.

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Angle - A figure formed by two rays with a common endpoint

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Measure of an angle - the smallest amount of rotation about the vertex from one ray to the other, measured in degrees

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Degrees - a unit for measuring angles

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Congruent - having the same size and the same shape.

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Sides of an angle - the rays of an angle

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Angle addition - If point D is in the interior of ∠CAB, then m∠CAD + m∠DAB = m∠CAB.

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Angle bisector - a ray that contains the vertex of an angle and divides the angle into two congruent angles

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Incoming and outgoing angles - an angle in pool formed by the cushion and the path of the ball approaching and leaving the cushion

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Reflex measure of an angle - the largest amount of rotation less than 360 degrees between the two rays that form the angle

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Vertex - The common endpoint of an angle

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Protractor - A geometry tool used to measure and draw angles.

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Adjacent Angles - Angles that share a vertex and a side

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Parallel lines - coplanar lines that never intersect

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Perpendicular lines - lines that intersect at right angles

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Skew lines - Lines that do not intersect and are not coplanar

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Right angle - an angle that measures 90 degrees

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Acute angle - an angle that measures less than 90 degrees

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Obtuse angle - An angle that measures more than 90 degrees but less than 180 degrees

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Complementary angles - Two angles whose sum is 90 degrees

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Supplementary angles - two angles whose sum is 180 degrees.

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Vertical angles - angles formed by intersecting lines that share a common vertex but not a common side

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Linear pair of angles - two angles that share a vertex, a common side, and their non-common sides form a line.

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