Identifying Base Angles in Isosceles Triangles: Key Properties and Relationships

Question

In an isosceles triangle, the angle between ? and ? is the "base angle".

Step-by-Step Solution

An isosceles triangle is one that has at least two sides of equal length. The angles opposite these two sides are known as the "base angles."
The side that is not equal to the other two is referred to as the "base" of the triangle. Thus, the "base angles" are the angles between each of the sides that are equal in length and the base.
Therefore, when we specify the angle in terms of its location or position, it is the angle between a "side" and the "base." This leads to the conclusion that the angle between the side and the base is the "base angle."

Therefore, the correct choice is Side, base.

Answer

Side, base.

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Types of Triangles The Sum of the Interior Angles of a Triangle The sides or edges of a triangle Equilateral triangle Isosceles triangle Triangle Height Acute triangle Obtuse Triangle Scalene triangle Exterior angles of a triangle Identification of an Isosceles Triangle Right Triangle Median in a triangle Center of a Triangle - The Centroid - The Intersection Point of Medians All terms in triangle calculation

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