__1. Two triangles are similar if two angles of one triangle are congruent to two angles of another triangle.

__2. Two triangles are similar if the corresponding sides of two triangles are equal.

__3. Two triangles are similar if an angle of one triangle is congruent to an angle of another triangle andthe corresponding sides including those angles are in proportion.

__4. If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are only similar to each other.

__5. In a 30-60-90 Right Triangle, the hypotenuse is twice the shorter leg.​