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35 Cards in this Set
- Front
- Back
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a quadrilateral with one pair of parallel sides
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trapezoid
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parallel side of a trapezoid
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bases
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non-parallel side of a trapezoid
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legs
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the angles at the end of each base
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base angles
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base angles of an isoceles trapezoid are
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congruent
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diagonals of an isoceles trapezoid are
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congruent
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an upper base angle of an isoceles trapezoid and lowr base angle of an isoceles trapezoid are
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supplementary
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a segment connecting the midpoints of the legs of a trapezoid
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median of a trapezoid
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what is the formula for the mediam of a trapezoid
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Median=(b1 + b2) / 2
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is the parallel to the third side and its length is half that of the third side
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mid-segment of a triangle
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a quadrilateral with two pairs of adjacent congruent sides and with no opposite side congruent
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kite
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diagonals of a kite are
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perpendicular
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the longer diagonal ofa kite is
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the perpendicular the bisector of the shorter diagonal
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the area of a kite is
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half the product of the lengths of its diagonals
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what is the formula for kite
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Akite = (1/2)(d1*d2)
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how many side does a quadrilateral have
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four
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greek meaning for quadri
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four
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what does four mean in greek?
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quadri
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what does sides mean in greek?
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lateral
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greek meaning for lateral
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sides
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has 2 diagonals with one diagonal per vertex
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quadrilateral
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can be classified according to the number of parallel side they have
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quadrilateral
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the different kinds of quadrilaterals are
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*parallelogram * trapezoids *trapeziums
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parts of a quadrilateral
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*sides *vertices* inetrior angles * adjacent sides *opposite sides *opposide angles
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the sum of the interior angles of a quadrilateral is
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360 degrees
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parallelogram that has congruent angles
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rectangle
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parallelogram that has congruent side
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rhombus
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parallelogram that has congruent angels and sides
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square
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a quadrilateral with one pair of opposite side parallel
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trapezoid
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the parallel side of a trapezoid are called
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bases
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if the legs of a trapezoid is equal (the non paralle sides) then the trapezoid is said to be an
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isoceles trapezoid
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a quadrilateral that has no pair parallel sides
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trapezium
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a non convex trapezium
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boomerang
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a convex trapezium with two pairs of congruent side
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kite
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is a quadrilateral with both pairs of opposite sides parallel
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parallelogram
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