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Math NWEA
| Term | Definition |
|---|---|
| Ratio | A comparison of two numbers by division |
| Equivalent Ratios | Two ratios that name the same number |
| Rate | A ratio involving two quantities in different units |
| Unit Rate | The rate for one unit of a given quantity |
| Unit Cost | A unit rate that gives the cost per unit |
| Proportion | An equation stating that two ratios are equal |
| Cross Products | You can find this of two ratios by multiplying the numerator of each ratio by the denominator of the other ratio |
| Scale | The ratio that compares a length in a drawing or model to the length in an original object |
| Percent | A ratio that compares a number two one-hundred |
| Circle Graph | A graph id data in which the entire circle represents the whole |
| Point | A location in space. It has no size. |
| Line | A series of points that extends in two opposite directions without end. |
| Segment | Consists of two endpoints and all the points of the line between the endpoints. |
| Ray | Consists of one endpoint and all the points of the line on one side of the endpoint |
| Plane | A flat surface with no thickness that extends in all directions on a surface |
| Intersecting Lines | Lines that have exactly one point in common |
| Parallel Lines | Lines that have no points in common and never will. |
| Skew Lines | Lines that are not parallel and do not intersect. |
| Angles | A figure formed by two rays with a common endpoint |
| Vertex | The point of intersection of two sides of an angle or figure |
| Degrees | To measure angles in units. |
| Acute Angles | Measures less then ninety degrees. |
| Right Angles | Measures ninety degrees. |
| Obtuse Angles | Measures between ninety and one hundred eighty degrees |
| Straight Angles | Measures one hundred eighty degrees |
| Perpendicular Lines | Lines that intersect and form right angles |
| Complementary Angles | The sum of the measures of two angles is ninety degrees |
| Supplementary Angles | The sum of the measures of two angles that equal one hundred eighty degrees |
| Vertical Angles | Two intersecting lines |
| Congruent Angles | Angles with equal measures |
| Transversal | A line that intersects two or more lines |
| Triangle | A closed figure made of three line segments that meet only at their endpoints. |
| Acute Triangle | Three acute angles |
| Obtuse Triangle | One obtuse angle |
| Right Triangle | One right angle |
| Equilateral Triangle | Three congruent sides |
| Isosceles Triangle | At least two congruent sides |
| Scalene Triangle | No congruent sides |
| Congruent Segments | Segments that are the same length |
| Polygon | A closed figure that has three or more line segments that do not cross |
| Regular Polygons | A polygon with all sides congruent and all angles congruent |
| Irregular Polygons |
Created by:
Lydia Struble
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