| A | B |
|---|
| pentagon | polygon with 5 sides |
| line | straight path that goes on without end |
| line segment | part of a line |
| angle | formed by two rays with a common end point |
| ray | one end point |
| right angle | measures 90 degrees |
| parallel lines | same distance apart, never meet |
| perpendicular lines | cross at right angles |
| hexagon | polygon with 6 sides |
| octagon | polygon with 8 sides |
| isoceles triangle | triangle with 2 equal sides |
| scalene triangle | triangle with no equal sides |
| equilateral triangle | triangle with all sides equal |
| right triangle | triangle with one right angle |
| parallelogram | quadrilateral with opposite sides parallel |
| face | flat surface of a solid figure |
| edge | formed when two faces meet |
| vertex | point where edges meet |
