Ms. Garcia Math
Angle
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The shape made by two straight lines meeting in a point
Right angle
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An angle of 90 degrees
Acute angle
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Angles smaller than a right angle. The word “acute” means “sharp.”
Obtuse angle
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Angles larger than a right angle. The word “obtuse” means “blunt.”
Straight angle
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An angle of 180 degrees
Degrees
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A unit we use to measure angles. 360 degrees is a full rotation (a circle).
1 degree = 1/360 of a circle.
Complementary
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Adds 90 degrees
Supplementary
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Adds 180 degrees