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1
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an angle measuring less
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3
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a part of a circle between any two points on its circumference
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4
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the operation of combining groups to find the total amount
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5
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an arrangement of objects in equal rows or collumns
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6
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a step by step method for solving a problem
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7
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a figure made by two rays that extend to the same point or line
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8
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a number that is added
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1
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a triangle with three acute sides
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2
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a number of square units needed to cover a surface
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