Terms : Hide Images
| 313104015 | acute angle | An angle with a measure greater then 0* and less then 90*. |  | 1 |
| 313104016 | area | The number of square units needed to cover the surface enclosed by a geometric figure. |  | 2 |
| 313104017 | bisect | To separate into 2 congruent (equal) parts |  | 3 |
| 313104018 | circumference | The distance around a circle |  | 4 |
| 313104019 | complementary angles | two angles that together make up a 90* (right angle) |  | 5 |
| 313104020 | congruent | Having the same measure. |  | 6 |
| 313104021 | degree | The most common unit of measure for angles |  | 7 |
| 313104022 | diameter | The distance across a circle through its center. |  | 8 |
| 313104023 | edge | the intersection of faces of a 3 -D (dimensional figure) |  | 9 |
| 313104024 | equilateral | A triangle in which all the sides are of equal length |  | 10 |
| 313104025 | face | The flat surface of a 3 dimensional figure |  | 11 |
| 313104026 | isosceles | describes a triangle in which two of the three sides are of equal length |  | 12 |
| 313104027 | obtuse angle | describes an angle greater than 90º and less than 180º |  | 13 |
| 313104028 | parallel lines | relating to or being lines, planes, or curved surfaces that are always the same distance apart and therefore never meet |  | 14 |
| 313104029 | perimeter | the distance around any enclosed geometric figure. |  | 15 |
| 313104030 | perpendicular | when two lines meet at right angles |  | 16 |
| 313104031 | radius | a straight line extending from the center of a circle to its edge |  | 17 |
| 313104032 | right angle | an angle of 90° |  | 18 |
| 313104033 | scalene | describes a triangle in which each side is a different length |  | 19 |
| 313104034 | supplementary angles | two angles whose sum = 180* |  | 20 |
| 313104035 | vertex | the common endpoint of two rays forming an angle. |  | 21 |
| 313104036 | volume | the amount of space inside a 3-D object |  | 22 |
| 313104037 | straight angle | an angle of 180° |  | 23 |
