In an isosceles triangle, the angle at the apex opposite to the base is 102 degrees. Find the corner at the base.

Since the sum of the angles of a triangle is 180 and in an isosceles triangle the angles at the base are equal, we have:
(180-102): 2 = 39



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.