Respuesta :
In an isosceles triangle, the angle opposite the base is referred to as the vertex angle.
A triangle refers to a two-dimensional shape which comprises of three sides and three angles. The isosceles triangle is a type of triangle in which two sides are congruent i.e., they are the same length. The third side of an isosceles triangle is of different length and is referred to as the base. The three angles of any triangle add up to a sum of 180°. In isosceles triangles, the two angles located along the base are referred to as the base angles which are always congruent, or equal. The angle opposite the base is referred to as the vertex angle and is different value from the two base angles. The value for the vertex angle can always be calculated by subtracting the base angles from 180° using the general formula: 180° - 2B = A, where B refers to the base angle and A is the vertex angle.
Note: The question is incomplete. The complete question probably is: Which is the vertex angle of an isosceles triangle.
Learn more about Isosceles triangle:
https://brainly.com/question/1475130
#SPJ4
