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3
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the best subject in all the universei
|
6
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an angle that is less than 90 degrees
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9
|
when you continue a pattern or make an observation
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11
|
when you see something - to notice
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13
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when two crossing lines make a right angle
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14
|
two angles whose sum is 180 degrees
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16
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a branch of geometry where we study deduction and induction
|
17
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a smart idea that is based on facts
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19
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a line that crosses two other lines
|
20
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a statement intended to prove that something is true
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