Chapter One Word Scramble
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Term | Definition |
Line Segment | measurable piece of a line with 2 distinct endpoints |
Distance Formula | the distance between two points A (x1,y1) and B (x2, y2) |
Congruent | having the same size AND the same shape |
Congruent Segments | If segments are congruent, they are also equal |
Bisect | to cut in half. A midpoint bisects a segment and gives 2 congruent parts |
Midpoint Formula | xm= x1 + x2/2 and y1 + y2/2. This gives the midpoint values when you are given two other points on a line segment |
Ray | a part of a line with exactly one endpoint. It goes indefinitely long in one direction. Remember in naming a ray that order matters!! |
Angle | 2 rays with a common end point. |
Naming a Ray | Always start with the endpoint!! |
Naming an Angle | Always put the vertex in the middle of the angle name |
Right Angle | an angle which has a measure of 90 degrees |
acute angle | an angle which has a measure less than 90 degrees |
obtuse angle | an angle which has a measure more than 90 degrees |
straight angle | an angle which has a measure of 180 degrees |
angle bisector | a ray that divides an angle |
Adjacent Angles | adjacent angles are next to each other and share a ray. |
Vertical Angles | two non adjacent angles formed by 2 intersecting lines |
Complementary Angles | their measure add to be 90 degrees |
Supplementary Angles | their measure add to a total of 180 degrees |
Perpendicular | to prove something is perpendicular, you need to prove that it is 90 degrees. |
Adjacent Supplementary Angles | same as a linear pair. |
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amgeometry
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