| A | B |
|---|
| Congruent | Vertical angles are always ____. |
| Supplementary | Two angles whose sum is 180 degrees. |
| Complementary | Two angles whose sum is 90 degrees. |
| 180 degrees | The sum of the interior angles of a triangle. |
| 360 degrees | The sum of the exterior angles (one at each vertex) of ANY convex polygon. |
| Similar | Polygons whose shape is the same but size may be different are ___. |
| Congruent | Polygons whose shape and size are the same are ___. |
| Similar | Polygons whose corresponding angles are congruent and sides are proportional are ___. |
| Corresponding | Another word for "matching". |
| Proportional | The lengths of corresponding sides of similar triangles are ___. |
| Tangent | A line that intersects a circle at only one point is a(n) ___ to a circle. |
| Right Angle | A tangent to a circle always forms a(n) ___ with the radius of the circle. |
| Arc | Part of the circumference is called a(n) ___. |
| Parallel | The segment formed by joining the midpoints of two sides of a triangle are ___. |
| Tessellation | A repeating pattern of figures that completely fills a plane with no gaps is a(n) ___. |
| Fractal | A self similar figure is a(n) ___. |
| Pythagorean Triple | Three whole numbers that satisfy the Pythagorean Theorem. |
| Pythagorean Theorem | a^2 + b^2 = c^2 |
| 30-60-90 | "one" "two" "square root of three" - a special right triangle |
| 45-45-90 | "one" "one" "square root of two" - a special right triangle |
| Hypot-"two"-nuse | A corny way to remember where the "2" goes for special right triangles. |
| Hypotenuse | The longest side of a right triangle is called the ___. |
| Leg | The sides of a right triangle that make up the right angle are called ___s. |
| 30 degree | On the 30-60-90 triangle the shortest leg is across from the ___ angle. |
| 60 degree | On the 30-60-90 triangle the longer leg is across from the ___ angle. |
| 90 degree | On the 30-60-90 triangle the hypotenuse is across from the ___ angle. |
| The Same | On the 45-45-90 triangle the legs are ___ length. |
| Translation | The geometric word for slide. |
| Reflection | The geometric word for flip. |
| Each point of the image moves the same distance and direction. | Translation |
| Each point is the same distance from a line separating the original from its image. | Reflection |
| Each point is moved the same number of degrees in a circle around a point. | Rotation |
| Subtract the area of the inside from the area of the outside. | To find the area of a border... |
| Perimeter | The length around an object. |
| Area | The space inside an object. |
