| A | B |
|---|
| Polygon | a closed 2D figure formed by 3 or more line segments. |
| Composite Figure | made up of two or more simple shapes. |
| Major Arc | Measures more than 180 degrees. |
| Minor Arc | Measures less than 180 degrees. |
| Named using the two endpoints. | Minor Arc |
| Named using two endpoints and a point on the arc. | Major Arc |
| (length of arc) / (circumference of circle) | (degree measure of arc) / 360 degrees |
| Central Angle | The degree measure of an arc is equal to its
|
| Sector | Part of a circle bounded by two radii and an arc. |
| (area of sector) / (area of circle) | (measure of central angle) / (360 degrees) |
| Pythagorean Theorem | Leg squared + leg squared equals hypotenuse squared. |
| Pythagorean Triple | Set of whole numbers that are the lengths of the sides of a right triangle. |
| Apothem | The length of the perpendicular line segment from the center to the side of a regular polygon. |
| Surface Area | The sum of the areas of all a solid figures surfaces. |
| Lateral Surface Area | The sum of the areas of all a solid figures surfaces except the base(s). |
| Net | A 2D drawing of a 3D figures surfaces. |
| Slant Height | The height along the face of a pyramid. |
| Height | Must be perpendicular to the base of the figure. |
| Similar Figures | Figures that have the same shape whose sides are proportional. |
| Figures in which corresponding angles are congruent are ___ | Similar Figures |
| Dilation | A proportional enlargement or reduction of a figure through a point. |
| Scale Factor | The size of an enlargement or reduction. |
| Enlargement | Has a scale factor greater than 1. |
| Reduction | Has a scale factor less than 1. |
| Same as | The perimeter of a dilated figure is changed by the ___ the scale factor. |
| Square of | The area of a dilated figure is changed by the ___ the scale factor. |
| Cube of | The volume of a dilated figure is changed by the ___ the scale factor. |
