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20 Cards in this Set
- Front
- Back
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what is union?
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union is basically the sum of everything - adding all the elements of the diagram - it is represented by "U"
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what is intersection?
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intersection is basically what the elements have in common and is represented by an upside down U
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colinear
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points are colinear if they are on the same line (3 or more) - likewise, they are noncolinear if they are not on the same line
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betweenness
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a point can be between 2 points if the 3 points are colinear
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what are the 2 possibilities if there are 3 points?
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we can have colinear + 1 point is in between, or they make a triangle
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what is union?
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union is basically the sum of everything - adding all the elements of the diagram - it is represented by "U"
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what is intersection?
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intersection is basically what the elements have in common and is represented by an upside down U
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colinear
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points are colinear if they are on the same line (3 or more) - likewise, they are noncolinear if they are not on the same line
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betweenness
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a point can be between 2 points if the 3 points are colinear
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what are the 2 possibilities if there are 3 points?
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we can have colinear + 1 point is in between, or they make a triangle
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what is important to remember about triangles?
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the sum of any 2 sides will always be greater than the third side
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theorem
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a mathematical expression or statement that can be proven
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bisector
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a point (or segment, ray or line) that divides a segment into 2 congruent segments
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midpoint
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the bisection point
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trisection point
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two points (or segment, ray or line) that divide a line segment into 3 congruent segments
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what is important to remember about triangles?
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the sum of any 2 sides will always be greater than the third side
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theorem
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a mathematical expression or statement that can be proven
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bisector
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a point (or segment, ray or line) that divides a segment into 2 congruent segments
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midpoint
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the bisection point
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trisection point
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two points (or segment, ray or line) that divide a line segment into 3 congruent segments
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