Question

An isosceles triangle is _______ equilateral.

- Never
- Sometimes
- Always

Answer 1

It is always an isosceles triangle.

Explanation:

The definition of an isosceles triangle is that it was 2 congruent sides. The definition of an equilateral triangle is that all sides are congruent. That means that at least 2 sides of the equilateral triangle are congruent, therefore we can conclude that it is isosceles, as long as equilateral.

Answer 2

Answer: Always

Explanation:

Taking the English word " equilateral" which simply means equal sides we can easily decode that as the name implies it always has equal side or at least two equal sides.

The two equal sides are called the legs and the third side is called the base of the triangle. The other dimensions of the triangle, such as its height, area, and perimeter, can be calculated by simple formulas from the lengths of the legs and base. Every isosceles triangle has an axis of symmetry along the perpendicular bisector of its base. The two angles opposite the legs are equal and are always acute , so the classification of the triangle as acute, right, or obtuse depends only on the angle between its two legs.