The mean of a normally distributed data set is 45, and its standard deviation is 7. For this data, the probability of which range of numbers is represented by the area of the shaded region in the given curve?

If two sides of a triangle are congruent, then the angles opposite those sides are congruent. the converse of the base angles theorem, states that if two angles of a triangle are congruent, then sides opposite those angles are congruent.