| A | B |
|---|
| right angle | A 90 degree angle. |
| equilateral triangle | A triangle with all sides equal. |
| scalene triangle | A triangle having three unequal sides and angles. |
| vertex | The intersection point of two sides. Also called a turning point. |
| right triangle | A triangle with one internal angle equal to 90 degrees. |
| pentagon | A polygon with 5 sides and 5 angles. |
| square | A rectangle having all four sides of equal length. |
| intersecting lines | Lines that cross each other. |
| perpendicular lines | Two lines that cross each other to form a 90 degree angle. |
| acute angle | An angle less than 90 degrees. |
| chord | The line segment connecting two points on a circle. |
| radius | A line segment extending from the center of a circle to a point on the circle. |
| line segment | A part of a line that has two different endpoints. |
| line | A continuous extent of length that has no endpoints. |
| point | A position in space. |
| rectangle | A quadrilateral with opposite sides parallel and all angles are right angles. |
| circle | All points on a plane that are the same distance from a given point known as the center point. |
| closed curve | A curve that is continuous with meeting end points. |
| hexagon | A six sided figure |
| obtuse angle | An angle greater than 90 degrees. |
| diameter | Any chord of a circle that passes through the center point. |
| acute angle | An angle whose measure is less than 90 degrees |
| Isosceles triangle | a triangle with two equal sides. |
| Trapezoid | A quadrilateral with only one pair of its opposite sides parallel. |
| Parallelogram | A quadrilater with both pairs of its opposite sides parallel. |
| Quadrilateral | Any figure on a plane that has sides. |
| Triangle | Any figure on a plane with three sides. |
| Octagon | Any figure on a plane with eight sides. |
| Ray | A part of a line that has exactly one endpoint. |
| Supplementary Angles | Two angles whose measure add up to 180 degrees. |
| Complementary Angles | Two angles whose measure add up to 90 degrees. |
| Traceable Figure | A figure is traceable if it has either 0 or 2 odd vertices (Euler's Rule). |
| A Compass | An instrument used to draw circles |
| Protractor | An instrument used to draw or measure angles. |
| Geoboard | A device using pegs and rubber bands to make different shaped figures. |
| The three angles of a triangle will always add up to ? degrees. | 180 degrees |
| If two angles of a triangle measure 32 and 48 degrees,then the third angle measures ?. | 100 degrees |
| Congruent triangles | The triangles are the same size |
| Similar triangles | The triangles have the same shape, not necessarialy the same size. |
| Circumference | The distance around a circle. |
| Perimeter of a rectangle | The distance around the rectangle. |
| 3.14 | an approximation of Pi |
| hypotenuse | the slanted side of a right triangle |
| legs of a right triangle | the sides of the triangle that form the 90 degree angle. |
| The math property represented by 2 + 3 = 3 + 2. | The Commutative Property of Addition. |
| (2 + 3) + 4 = 2 + (3 + 4) is an example of what math property | Associative Property of Addition |
| 3(4 + 5) = 3 times 4 + 3 times 5 is an example of what math property. | Distributive Property |
| If an angle measures 30 degrees, then its supplement measures ___degrees. | 150 degrees |
| If an angle measures 20 degrees, then its complement measures ___degrees. | 70 degrees |
| The angles of a quadrilateral will always add up to ___degrees. | 360 degrees |
| The geometric name of a box is ___. | Rectangular Prism |
| The geometric name of a basketball (inflated) is ---? | Sphere |
| Slide (also called a translation) | moves a figure up, down, or over. |
| Flip (also called a reflection) | gives a mirror image of the figure. |
| Turn (also called a rotation) | moves the figure about a point. |
| Euclid | The man that wrote "The Elements" from which we get the Geometry we studied in class. |
| "The Elements" is really ___ different books. | 13 |
| Euclid taught at what center of learning in the ancient world? | Library of Alexandria |
| Hypatia (pronounced Hi pay sha) | Famous Woman Mathematician who also taught a the famous Library of Alexandria |
| The Library of Alexandria was located in what country? | Egypt |
| The meaning of Algebra, a word that evolved from the Arabic word Aljbr. | To restore |
| The perimeter of an equilateral triangle of side length 8 inches is ___. | 24 inches |
| For angle ADG, the letter that represents the vertex point is __. | D |
| The measure of a straight angle is ___. | 180 degrees |
| If the diameter of a circle is 14 inches, then its radius measures ___inches. | 7 inches |
| The formula for finding the circumference of a circle is ___. | Circumference = 2 times Pi times radius |
| > | The math symbol for "greater than". |
| < | The math symbol for "less than". |
| = | The math symbol for "the same as" or equal to. |
| the value of 6^3 (meaning 6 raised to third power is___? | 216 |
| The square root of 49 is __? | 7 |
