An isosceles triangle has three interior angles whose base angles are equal.
equal
The third angle of an isosceles triangle doesn't have a name.
The two base angles are equal
They are the same size
The base angles of an isosceles triangle are congruent.
The base angles of an isosceles triangle are congruent. The vertex angle of an isosceles triangle is not necessarily congruent to the base angles.
An isosceles triangle has three interior angles whose base angles are equal.
Base Angles
In an isosceles triangle and an isosceles trapezoid, both base angles are congruent
It will be either isosceles or equilateral. It is equilateral if all of the angles are congruent.
An isosceles triangle has two equal angles in the base.
equal
It is an isosceles triangle
The base angles of an isosceles triangle are the two angles with the same measure, each formed by the intersection between the base of the triangle and one of the two legs.
No. It need not be the base angles that are equal, it can be one of the base angles and the top angle (if the triangle is tipped over). Also, the base angle are equal in an equilateral triangle - although an equilateral triangle is a special kind of isosceles triangle.
The base angles of an isosceles triangle are the two angles that are equal to each other. They can be between 89.999...o and 0.000000..01o.