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12 Cards in this Set
- Front
- Back
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Angle
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Consist of two different rays with the same endpoint
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Sides of an angle
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The rays are the sides of the angle
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Vertex of an angle
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The endpoint of the angle
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Protractor postulate
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Consider line OB and point A is on one side of line OB. The ray of the form ray OA can be matched one to one with the real numbers from 0 to 180
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Measure of an angle
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The measure of angle AOB is equal to the absolute value of the difference between the real numbers for Ray OA and OB
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Angle addition postulate
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If P is in the interior of angle RST, then the measure of angle RST is equal to the sum of angle PSP and angle PST
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Right angle
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An angle that measure is equal to 90 degrees
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Acute angle
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An angle with a measure that is less than 90 degrees
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Obtuse angle
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An angle that measure is greater than 180 degrees
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Straight angle
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An angle with a measure that is equal to 180
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Congruent angles
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Two angles are congruent if two angles have the same measure
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Angle bisector
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A ray that divides an angle into two angles that are congruent
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