PSSA Math Terms
About this set
Created by:
MsAre on March 22, 2010
Subjects:
math vocabulary, math, mathematics
Description:
Terms you need to know for the Math Vocabulary Test on March 31, 2010.
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30 terms
Terms | Definitions |
|---|---|
 Prism | A three-dimensional solid that has two congruent and parallel faces that are polygons. The remaining faces are rectangles. Prisms are named by their bases. |
| Expression | A variable, or any combination of numbers, variables, and symbols that represents a mathematical relationship (e.g., 24 x 2 + 5 or 4a - 9) |
| Acute Triangle | A triangle that has each angle measuring less than 90 degrees. |
| Quadrants | The four regions of a coordinate plane that are separated by the axes. |
| Function | A relation in which every input value has a unique output value. |
| Adjacent Angles | Angles that share a common side and common vertex and do not overlap. |
| Range | The difference between the greatest and least numbers in a set of data. |
| Hypotenuse | The longest side of a right triangle (which is also the side opposite the right angle). |
| Area | The measure, in square units, of the inside of a plane figure. |
| Rate | A ratio that compares two quantities having different units (e.g., 95 miles in 2 hours). |
| Inequality | A mathematical sentence that contains a symbol that shows the terms on either side of the symbol are unequal (e.g. 3 + 4 > 6). |
| Box-and-Whisker Plot | A graphic method for showing a summary of data using median, quartiles, and extremes of data. |
| Surface Area | The sum of the areas of all of the faces of a three-dimensional figure. |
| Leg | Either of the two sides that form the right angle in a right triangle. |
| Complementary Angles | Two angles whose measures, when added together, equal 90 degrees. |
| Congruent | Having the same size and shape. |
| Mean | The number found by dividing the sum of a set of numbers by the number of addends. |
| Unit Price | The price of a single item or amount (e.g., $3.50 per pound). |
| Median | The middle number in an ordered set of data, or the average of the two middle numbers when the set has two middle numbers. |
| Cylinder | A three-dimensional figure with two circular bases, which are parallel and congruent. |
| Net | A two-dimensional shape that can be folded to create a three-dimensional figure. |
| Mode | The number(s) that occurs most often in a set of data. |
| Volume | The amount of space (in cubic units) that a solid figure can hold. |
| Ordered Pair | A pair of numbers used to locate a point on a coordinate grid. The first number tells how far to move horizontally, and the second number tells how far to move vertically. |
| Diameter | A line segment that has endpoints on a circle and passes through the center of the circle. |
| Perfect Square | The product of an integer multiplied by itself (e.g., 121 is a perfect square because 11 x 11 = 121). |
| Equation | A statement that two mathematical expression are equal. |
| X-axis | The horizontal number line on a coordinate plane. |
| Obtuse Triangle | A triangle with one angle that measures more than 90 degrees. |
| Coordinate Plane | A two-dimensional system in which the coordinates of a point are its distances from both a horizontal and vertical line called the axes. |
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