Geometry Vocabulary Lesson #3. #12 Angle A figure formed by 2 rays with the same endpoint.

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Presentation transcript:

Geometry Vocabulary Lesson #3

#12 Angle A figure formed by 2 rays with the same endpoint

#13 Degree #13 Degree The unit used to measure angles 45º

# 14 Vertex The point where rays or 2 sides of a figure meet The point where rays or 2 sides of a figure meet

#15 Acute Angle #15 Acute Angle An angle that measures less than 90º

#16 Obtuse Angle An angle that measures more than 90º but less than 180º An angle that measures more than 90º but less than 180º

#17 Right Angle An angle that measures exactly 90º

#18 Straight Angle #18 Straight Angle An angle that measures exactly 180º

#19 Complementary Angle 2 angles that add up to 90º

#20 Supplementary Angles 2 angles that add up to 180º 2 angles that add up to 180º