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A four side polygon |
Quadrilateral |
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From the greek words "_____" meaning 4 and "_____" which has to do with sides. |
Quadri , lateral |
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has 2 diagonals, with one diagonal per vertex |
Quadrilateral |
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What are the different kinds of quadrilaterals? |
parallelogram , trapezoids & trapeziums |
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The sum of the interior angles of a quadrilateral is 360* |
Quadrilateral - Angle Sum Theorem |
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is a quadrilateral with both pairs of opposite sides parallel |
Parallelogram |
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What are the 3 kinds of Parallelogram? |
Rectangle, Rhombus and Square |
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a quadrilateral with one pair of opposite sides parallel |
Trapezoid |
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The parallel sides are called the "_____" of the trapezoid. |
bases |
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If the legs are equal, then the trapezoid is said to be an "_____" |
isosceles trapezoid |
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a parallelogram that has congruent angles |
Rectangle |
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a parallelogram that has congruent sides |
Rhombus |
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a parallelogram that has congruent angles and congruent sides |
Square |
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a quadrilateral that has no pair parallel sides |
Trapezium |
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What are the two kinds of trapezium? |
kite and boomerang |
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a convex trapezium, with two pairs of congruent sides |
kite |
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a non-convex trapezium |
boomerang |
