| A | B |
| sector | a region of a circle bounded by an arc and two radii of a circle; wedge |
| translation | to move a figure along a straight line; a slide |
| decagon | a polygon with ten sides |
| dilation | a transformation in which a figure is enlarged or reduced using a certain scale |
| hexagon | a polygon with six sides |
| parallel | lines that will never meet no matter how long they are extended |
| perpendicular | lines that meet to form 90 degree angles |
| reflection | to "flip" an image over a line so its image is its mirror image |
| transformation | ways to change a point, line, figure -slide, flip, turn |
| right triangle | a triangle with a 90 degree angle |