| A | B |
|---|
| Ray | Part of a line with only one endpoint |
| Right Triangle | Triangle with 1 angle that measures 90 degree. |
| Polygon | flat close figure with 3 or more straight sides. |
| Angle | 2 rays sharing an endpoint |
| Line | An infinite set of points forming a straight path with no endpoints. |
| Vertex | The point where 2 lines, line segments, or rays meet. |
| Isosceles Triangle | A triangle with exactly 2 equal sides and 2 equal angles. |
| Parallel Line | Two lines which are equal distance apart and never meets. |
| Right Angle | An angle that measure 90 dgree. |
| Scalenes Triangle | A triangle with no equal sides and no equal angles. |
| Reflection | Flip |
| Obtuse Angle | An angle with more than 90 degree but less than 180 degree. |
| Regular Polygon | A figure with all equal sides and all equal angles. |
| Perpendicular Lines | Two lines that intersects at a 90 degree. |
| Equilateral Triangle | A triangle with all equal sides and all equal angles. |
| Line Segment | A line with two endpoints. |
| Acute Angle | An angle that measure less than 90 degree. |
| Irregular Polygon | A polygon that has atleast 2 different sides and 2 different angles. |
| Rotation | Turn |
| Intersecting Line | Lines that cross each other. |
| Transversal | A line intersecting two parallel lines. |
| Straight Angle | An angle measure 180 degree. |
| Complementary Angles | Pair of angles add up to 90 degree. |
| Supplementary Angles | Pair of angles add up to 180 degree. |
| Congruent Figures | Same size, same shapes |
| Simmilarity | Same shape, |
| Translation | Slide |
| Tessellation | Tilling or a design that covers a surface in a pattern and without gaps or overlaps. |
| Co-ordinate Plane | Formed by intersection of horizontal number line with vertical number line. |
| Square | Quadrilateral with all equal sides and all equal angles. |
| Rectangle | Quadrilateral with all right angles and opposite sides parallel. |
| Triangle | A polygon with 3 sides. |
| Parallelogram | A quadrilateral with opposite sides parallel and opposite angles are equal. |
| Midpoint | Divides a line segment into two segment of equal length. |
| Nested Triangle | Shares a common angles. |
| Ratio | Comparision of two quantities. |
| Scale Factor | Number used to multiply the length of a figure to stretch or shrink it to similar image. |
| Rhombus | A prallalelogram with 4 sides of same length. |
| Trapezoid | A quadrilateral with exactly one pair of opposite sides parallel. |
| Cube | 3-D shape with 6 equal square as faces. |
| Cartesian Co-ordinate Plane | 2-D system of points determined by coordinate along X and Y axis. |
| Angle Sum | Sum of all the measure of the interior angles of a polygon. |
| Interior Angle | The angles inside a polygon. |
| Exterior Angle | The angles outside a polygon. |
| Vertical Angle | Opposite angles formed by tow intersecting line. |
| Adjacent Angle | Angles share a common ray. |
| Alternate Interior Angle | Angles form "Z" shape. |
| Hypotenuse | The longest side of a right angle triangle |
| Diagonal | Line segment connecting to opposite vertices. |
| Quadrilateral | A polygon with 4 sides. |
| Pentagon | A polygon with 5 sides. |
| Hexagon | A polygon with 6 sides. |
| Heptagon | A polygon with 7 sides. |
| Octagon | A polygon with 8 sides. |
