AB is the base of an isosceles triangle. Apex angle B is 31 degrees. Find other angles of triangle ABC.
| February 17, 2021 | education
In an isosceles triangle, the angles adjacent to the base are equal to each other. Therefore, if AB is the base, and the angle at the vertex B is 31 degrees, then the angle at the vertex A is also 31 degrees. The sum of the angles of the triangle is 180 degrees, we find the angle at the vertex C: 180-31-31 = 118 degrees.
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.
