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8th: PSSA Vocabulary
Use the flashcards to review important math vocabulary.
| Question | Answer |
|---|---|
| Acute triangle | A triangle that has each angle measuring less than 90 degrees. |
| Adjacent angles | Angles that share a common side and common vertex and do not overlap. |
| Alternate exterior angles | A pair of angles located outside a set of parallel lines and on opposite sides of the transversal. |
| Alternate interior angles | A pair of angles located between a set of parallel lines and on opposite sides of the transversal. |
| Box-and-whisker plot | A graphic method for showing a summary of data using median, quartiles and extremes of data. |
| Complementary angles | Two angles whose measures, when added together, equal 90 degrees. Compound event: An event made up of two or more simple events. |
| Coordinate plane | graph |
| Ordered pairs | Points on a coordinate plane. (x,y) |
| Origin | The point at which the two axes intersect has the coordinates (0,0). |
| Corresponding angles | Angles in the same relative position in similar or congruent figures. |
| Equilateral triangle | A triangle whose sides are all the same length. |
| Experimental probability | A statement of probability based on the results of a series of trials. |
| Independent events | Two events in which the outcome of one event does not affect the outcome of the other event. |
| Isosceles triangle | A triangle that has exactly two congruent sides. |
| Linear function | An equation whose graph in a coordinate plane is a straight line. |
| Net | A two-dimensional shape that can be folded to create a three-dimensional figure. |
| Obtuse triangle | A triangle with one angle that measures more than 90 degrees. |
| Order of operations | Rules describing what sequence to use in evaluating expressions; also known as PEMDAS |
| Perfect square | The product of an integer multiplied by itself (e.g., 121 is a perfect square because 11x11=121). |
| Permutation | Possible orders, or arrangements of a set of items. |
| Prism | A three-dimensional solid that has two congruent and parallel faces that are polygons. The remaining faces are rectangles. |
| Proportion | An equation showing that two ratios are equal. |
| Pythagorean theorem | A formula for finding the length of a side of a right triangle when the lengths of two sides are given. |
| Scalene triangle | A triangle with no congruent sides. |
| Scatterplot | A graph with points plotted to show a relationship between two variables. |
| Scientific notation | A form of writing very large or very small numbers using a number greater than or equal to 1 and less than 10 multiplied by a power of 10 (e.g., 4.7 x 109 = 4,700,000,000). |
| Stem-and-leaf plot | A data display that shows groups of data arranged by place value. |
| Supplementary angles | Two angles whose measures, when added together, equal 180 degrees. |
| Surface area | The sum of the areas of all of the faces of a three-dimensional figure. |
| Theoretical probability | A statement of the probability of an event without doing an experiment or analyzing data. |
| Vertical angles | A pair of opposite congruent angles formed when two lines intersect. |
Created by:
tsuprick
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