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10 Cards in this Set
- Front
- Back
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Acute angle
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an angle measuring between zero and 90 degrees
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Atlernate exterior angles
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congruent angles formed by two parallel lines cut by a transversal, located on opposite sides of the transversal outside the parallel lines
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Perimeter
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the distance around a 2-D figure
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Parallel lines
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lines that never intersect in a plane
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Pythagorean Theorem
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the sum of the squares of the legs of a right triangle equals the square of the hypotenuse; a2 + b2 = c2 where c is always the hypotenuse side
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Skew lines
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lines that are not parallel and do not intersect in space
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Obtuse angle
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an angle measuring between 90 and 180 degrees
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Equilateral triangle
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a triangle with three congruent sides
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Circumference
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the perimeter of a circle
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Radius
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the distance from the center to the circle
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