While tooth decay is often the primary cause of a toothache, it's important for you to have a complete oral examination to determine the cause. Other causes of a toothache can include the following: 1  Infection. 2  Gum disease. 3  Grinding teeth (bruxism). 4  Tooth trauma. 5  An abnormal bite.
Thus the formal definition of corresponding sides can be stated as follows: In two or more different plane figures, the sides that are in the same position but in different plane figures are called corresponding sides.
Corresponding angles: Corresponding angles are pairs of angles that are formed by two lines cut by a transversal such that they are on the same side of the transversal and on the same side of the lines. That is, the corresponding angles are the transversal angles that line in the same relative positions.