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Unit 1 Quiz 1
geometry definitions
| Question | Answer |
|---|---|
| Line | A geometric figure that extends in one dimension and is represented by a straight line with arrowheads on each end. |
| Intersection | The set of all point that are created with two geometric figures meet. |
| Midpoint | The point that divides, or bisects, a segment into two congruent segments. |
| Plane | A geometric figure that extends in two dimensions. It is usually represented by a shape that looks like a tabletop or a wall. |
| Obtuse Angle | Any angle whose measure is greater than 90 but less than 180. |
| Supplementary Angles | Two angles whose sum equals 180 degrees. |
| Ray | A type of line that consists of an initial point and all points on the line that extends in one direction. |
| Congruent Segments | Two segments that have the same length. |
| Segment | A type of line that consists of two endpoints and all the points on the line that lie between the two endpoints. |
| Colinear Points | Two segments that have the same length. |
| Acute Angle | Any angle whose measure is between 0 and 90 degrees. |
| Segment Bisector | Any geometric figure that intersects a segment at its midpoint. |
| Construction | A geometric drawing that uses a limited set of tools, usually a compass and a straighthead. |
| Vertical Angles | Two angles that are created by two intersecting lines. These angles must share only a vertex and be congruent to one another. |
| Distance Formula | square root [(delta x)^2 + (delta y)^2] |
| Midpoint Formula | (Average of x's, Average of y's) |
| Complementary Angles | Any two angles that add to exactly 90 degrees. Complementary angles do not need to be adjacent. |