| Obtusetriangle | | Two geometric figures that have the exact same size and shape. |
| Congruentfigures | | Two different angles that are made by two lines and a transversal occupies corresponding positions. |
| Legsofarttriangle | | It is the initial point of two rays. |
| Equilateraltriangle | | A triangle that measures more the 90 degrees. |
| Equiangulartriangle | | A triangle where no sides are equal. |
| Vertexangle | | The sides that form a right angle in a right triangle. |
| Baseangles | | The opposite side of a right angle in a right triangle. |
| Scalenetriangle | | A triangle that has three congruent sides. |
| Isoscelestriangle | | A triangle in wich two sides are equal. |
| Correspondingsides | | A triangle in wich all three sides are equal. |
| Adjacentsides | | If two angles are congruent the sides that are in corresponding position and are congruent are called? |
| Rightriangle | | When the lines of a triangle are extended the angles that are adjacent to the inside angles. |
| Legsofanisocelestriangle | | Two sides of a triangle that have a common vertex. |
| Vertex | | When the lines of a triangle are extended the three original angles of the triangle. |
| Corollary | | A triangle the measure less than 90 degrees. |
| Acutetriangle | | An angle wich measures to be 90 degrees. |
| Exteriorangle | | Two angles that are at the bottom of a triangle. |
| Hypotenuse | | A statement that can be proved by using a defintion or thereom. |
| Interiorangle | | The two congruent sides of isoceles triangle. |
| Correspondingangles | | The rays are the sides of the triangle and the initial point of the rays is the? |