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Words and Theorems that you will need to know

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
parallelogram   a quadrilateral with both pairs of opposite sides parallel  
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rhombus   a parallelogram with four congruent sides  
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quadrilateral   a polygon with 4 sides  
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rectangle   a parallelogram with four right angles  
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square   a parallelogram with four right angles and four congruent sides  
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kite   a quadrilateral with two pairs of adjacent sides congruent and no opposite sides congruent  
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trapezoid   a quadrilateral with exactly one pair of parallel sides  
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isosceles trapezoid   a trapezoid whose nonparallel opposide sides are congruent  
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Opposite Side of Parallelogram Theorem   opposite sides of a parallelogram are congruent  
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consecutive angles   consecutive angles sum to 180 degrees  
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Opposite Angles of Parallelogram Theorem   Opposite angles of a parallelogram are congruent  
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Diagonals of a Parallelogram   Diagonals of a parallelogram bisect each other  
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Converse of Diagonals of a Parallelogram   If the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram  
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Theorem 6-6   If one pair of opposite sides of a quadrilateral is both congruent and parallel, then the quadrilateral is a parallelogram  
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Converse of opposite sides of a parallelogram theorem   If both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram  
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Converse of Opposite Angles Theorem   If both pairs of opposite angles of a quadrilateral are congruent, then the quadrilateral is a parallelogram  
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Diagonals of a Rhombus Theorem   Each diagonal of a rhombus bisects two angles of the rhombus  
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Rhombus Diagonals and Perpendicular Theorem   The diagonals of a rhombus are perpendicular  
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Diagonals of a Rectangle Theorem   The diagonals of a rectangle are congruent  
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Converse of a Diagonals of a Rhombus Theorem   If one diagonal of a parallelogram bisects two angles of the parallelogram, then the parallelogram is a rhombus  
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Converse of Rhombus Diagonals and Perpendicular Theorem   If the diagonals of a parallelogram are perpendicular, then the parallelogram is a rhombus  
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Converse of Diagonals of a Rectangle Theorem   If the diagonals of a parallelogram are congruent, then the parallelogram is a rectangle  
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Created by: sscherer
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