7th Triangle Vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Acute Angle | angle that is less than 90 degrees.
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| Obtuse Angle | angle that is more than 90 degrees and less than 180 degrees
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| Right Angle | angle that is exactly 90 degrees. A small square is the symbol for this angle.
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| Straight Angle | angle that is exactly 180 degrees
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| Scalene Triangle | triangle that has NO congruent sides
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| Vertex | the common endpoint of 2 rays (point where 2 rays/sides meet and form angle)
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| Degrees | unit used to measure angles.
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| Acute Triangle | triangle that has all acute angles.
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| Right Triangle | triangle that has one right angle.
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| Obtuse Triangle | triangle that has one obtuse angle.
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| Angle | 2 sides/rays with a common endpoint.
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| Isosceles Triangle | triangle that has at least 2 congruent sides
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| Equilateral Triangle | triangle with all 3 congruent sides.
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| Sum of angles in a triangle | 180 degrees
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| Complimentary Angles | Sets of angles that add up to 90 degrees.
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| Supplementary Angles= | Sets of angles that add up to 180 degrees
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| Triangle | A shape with 3 sides and 3 angles. The sum of the angles is 180 degrees.
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Created by:
christine_gonzales
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