| A | B |
|---|
| face | a flat figure of a solid |
| edge | a line segment where two faces of a solid meet |
| vertex | a point where two or more edges meet |
| polygon | a closed plane figure made of line segments |
| angle | tow rays with a common vertex |
| ray | part of a line having only one end point |
| right angle | a 90 degree angle(makes an L shape) |
| acute angle | less than a right angle |
| obtuse angle | greater than a right angle but less than a straight angle |
| straight angle | a straight line |
| congruent | having the same size and shape |
| flip | to turn the figure over |
| turn | to rotate a figure |
| slide | to move a figure in one direction |
| similar | having the same shape |
| line segment | part of a line with two end points |
| parallel lines | lines that never intersect |
| intersecting lines | lines that cross each other |
| perpendicular | lines that cross each other at right angles |
| quadrilateral | a polygon with 4 sides |
| perimeter | the distance around a figure |
| area | the number of square units needed to cover a figure |
| volume | number of cubic units needed to fill a solid |
| pentagon | a 5 sided figure |
| hexagon | a 6 sided figure |
