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15 Cards in this Set
- Front
- Back
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circumcenter
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the point of concurrency of the perpendicular bisectors of a triangle
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incenter
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the point of concurrency of the angle bisectors of a triangle
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centroid
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the point of concurrency of the medians of a triangle
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altitude
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the perpendicular segment from a vertex of a triangle to the opposite side or to the line that contains the opposite side
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orthocenter
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the point of concurrency of the lines containing the altitudes of a triangle
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concurrent lines
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three or more lines that intersect in the same point
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corollary
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a statement that can be proved easily using a theorem or a definition
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base angles
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angles that are on the base of a isosceles triangle
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skew lines
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two lines that do not intersect and are not coplanar
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supplementary
complementary |
adds up to 180
adds up to 90 |
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converse
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switching the hypothesis and the conclusion
1->2 2->1 |
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inverse
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the statement formed when you negate the hypothesis and conlusion of a conditional statement
<3-> <3 </3-> </3 |
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contrapositive
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the statement formed when you negate the hypthesis and concluesion of the converse of a conditional statement
if 1 then 2 if not 2 then not 1 |
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biconditional statement
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a statement that contains the phrase if and only if
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equivalent statements
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when two statements are both true or both false
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