| A | B |
|---|
| composite figure | a complex figure made up of simple recognizable shapes |
| circle | the locus of points that are a fixed distance from a point called the center |
| center of a circle | names a circle and is equidistant from all the other points |
| center of a regular polygon | equidistant from the vertices of a polygon |
| apothem | distance from a center to a side of a polygon (like a radius for a circle) |
| central angle of a regular polygon | vertex at it's center and contains two rays that extend out to consecutive vertices |
| Area Addition Postulate | used to find the area of a composite figure by adding the areas of the simple shapes |
| scale factor | what you multiply by! |
| If all the dimensions are multiplied by X then.. | the perimeter is x times bigger! |
| If all the dimensions are multiplied by b then.. | the area is b times b bigger! |
| If all the dimensions are multiplied by c then.. | the volume is c times c times c bigger! |
