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1
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horizontal line called x-axis and vertical line y-axis
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2
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intersecting lines that form right angles
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3
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congruent angles, directly across from each other
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4
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name of coordinates
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5
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two segments have the same length
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6
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dvides an angle into two congruent angles
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7
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a2 + b2 = c2
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8
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a line that intersects two or more lines in a plane
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10
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two lines that never meet
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14
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two angles whose measures have a sum of 180
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1
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two angles whose measures have a sum of 90
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9
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length x width
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11
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coordinate plane divided into four of these
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12
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measurement of an angle
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13
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2l + 2w
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15
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used to find the measurement of an angle
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16
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angle that measures 90 degrees
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