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Cards In This Set
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Base of a parallelogram
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Can be any one of its sides
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Altitude
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Is a segment perpendicular to the line containing that base
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Height
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Is the length of the altitude
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Theorem 10-1
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The area of a rectangle is the product of its base
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Theorem 10-2
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The area of a parallelogram is the product of a base and the corresponding height
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Theorem 10-3
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The area of a triangle is half the product of its base and the corrseponding height
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Base of a triangle
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Can be any of its sides
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Height of a triangle
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The length of the altitude to the line containing that base
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Height of a trapezoid
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The perpendicular distance between the bases
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Theorem 10-4
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The area of a trapezoid is half the product of height and the sum of the bases
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Theorem 10-5
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The area of a rhombus or a kite is half the product of the lengths of its diagonals
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Radius of a regular polygo
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Is the distance from the center to a vertex
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Apothem
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The perpendicular distance from the center to a side
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Postulate 10-1
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If two figures are congruent, then their areas are equal
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Theorem 10-6
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The area of a regular polygon is half the product of the apothem and the perimeter
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