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Bellwork

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
Two parallel lines with a line crossing through both of them. What is the line called?   A transversal line  
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Straight angle-   A 180 degree angle  
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Right angle-   An angle that is exactly 90 degrees  
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Supplementary angles-   Two angles added together that equals 180 degrees  
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Complementary angles-   Two angles added together that equal 90 degrees  
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Vertical angles-   Two lines crossing that form two pairs of opposite, equal angles  
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Perpendicular lines-   Two lines intersecting that form four right angles.  
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Parallel lines-   Two lines on the same plane that never intersect.  
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Acute angles-   An angle below 90 degrees and above 0 degrees  
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Rectangle-   A quadrilateral with two sets of parallel lines and form four right angles.  
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Obtuse angle-   An angle that is above 90 degrees and below 180 degrees.  
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Acute triangle-   A triangle with three angles that are less than 90 degrees.  
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Right triangle-   A triangle that forms one a 90 degree angle  
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Equilateral triangle-   All sides are the same  
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Isosceles triangle-   2 sides are the same  
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Scalene triangle-   NO sides are the same  
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Quadrilateral-   A 4-sided closed figure  
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Trapezoid-   A quadrilateral that has 1 pair of parallel lines.  
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Parallelogram-   A 4-sided figure with 2 sets of parallel lines.  
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Rhombus-   A 4-sided closed figure with 2 sets of parallel lines and 4 congruent angles.  
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Polygon-   A closed figure made up of line segments.  
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Regular polygon-   A closed figure made up of line segments with all equal sides and angles.  
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Pentagon-   A 5-sided closed figure  
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Hexagon-   A 6-sided closed figure  
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Heptagon-   A 7-sided closed figure  
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Octagon-   An 8-sided closed figure  
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