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1
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Three or more lines passing through the same point
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2
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Lines which do not meet at any point
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3
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an angle whose measure is more than ninty but less than one eighty
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5
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Lines meeting at a point
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6
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Two angles which have a common arm,a common vertex and lie on either side of common arm
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7
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Device used to measure angles/
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8
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Angle having measure one eighty
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9
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Part of a line with two end points
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12
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Angle measuring between one eighty and three sixty
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14
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Two angles that add upto one eighty degree
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