| A | B |
|---|
| Perpendicular Lines | two lines that intersect for form four right angles. |
| Point | An exact location in space. |
| Parallel Lines | lines in the same plane that never intersect and are always the same distance apart. |
| Line Segment | a part of a line that includes two points called endpoints and all the points between them. |
| Line | a straight path of points in a plan that continues without end in both directions with no endpoints. |
| Intersecting Lines | lines that cross each other at exactly one point. |
| Line of Symmetry | an imaginary line on a shape about which the shape can be folded so that it's two parts match exactly. |
| Rhombus | a quadrilateral whose opposite sids are parallel of equal length |
| Square | a quadrilateral with two pairs of parrel sides, four sides of equal length and fourth right angles. |
| Rectangle | A quadrilateral with two pairs of parallel sides, two pairs of sides equal in length and four right angles. |
| Trapezoid | a quadrilateral with at least one pair of parallel sides. |
| Parallelogram | a quadrilateral whose opposite sides and parallel and of equal length. |
| Obtuse Angle | an angle that measure greater than 90 degrees and less than 180 degrees. |
| Acute Angle | an able that measures greater than zero degrees and less than 90 degrees. |
| Straight Angle | an angle who measure is 180 degrees |
| Right Angle | an able that forms a square corner. |
