No necessarily, but an equilateral triangle fulfils the criteria for an isosceles triangle:
Isosceles triangle := two equal sides and two equal angles - the third angle and third side do not have to be equal to the others
equilateral triangle := all three sides are equal and all three angles are equal.
No. But I suppose an equilateral triangle is isosceles. An equilateral triangle is one with three equal sides. The requirements are less stringent for an isosceles triangle. All it needs is two equal sides and it's entitled to take the name 'isosceles', but if the third side isn't also equal to those two, then it can't join the 'equilateral' club.
Are isosceles triangle sometimes an equilateral triangle
It can be scalene or isosceles but not equilateral.
An isosceles triangle has at least two congruent sides. An equilateral triangle has three congruent sides. So, an equilateral triangle is a special case of isosceles triangles. Since the equilateral triangle has three congruent sides, it satisfies the conditions of isosceles triangle. So, equilateral triangles are always isosceles triangles. Source: www.icoachmath.com
Not ... exactly. It would be closer to accurate to say that an equilateral triangle is a special case of the isosceles triangle.All equilateral triangles are (also) isosceles; but most isosceles triangles are not equilateral.
Isosceles has 2 equal sides, but an equilateral triangle, all of its sides are equal.
Are isosceles triangle sometimes an equilateral triangle
It can be scalene or isosceles but not equilateral.
The contrapositive would be: If it is not an isosceles triangle then it is not an equilateral triangle.
No because an equilateral triangle has 3 equal sides but an isosceles triangle has only 2 equal sides
An isosceles triangle has at least two congruent sides. An equilateral triangle has three congruent sides. So, an equilateral triangle is a special case of isosceles triangles. Since the equilateral triangle has three congruent sides, it satisfies the conditions of isosceles triangle. So, equilateral triangles are always isosceles triangles. Source: www.icoachmath.com
An equilateral triangle has all sides measuring the same and an isosceles triangle has 2 sides congruent, so they are not the same. Every equilateral triangle is also an isosceles triangle, but not every isosceles triangle is an equilateral triangle. Isosceles = at least two equal sides Equilateral = three equal sides
Not ... exactly. It would be closer to accurate to say that an equilateral triangle is a special case of the isosceles triangle.All equilateral triangles are (also) isosceles; but most isosceles triangles are not equilateral.
Isosceles has 2 equal sides, but an equilateral triangle, all of its sides are equal.
No. An equilateral triangle is where all three sides of the triangle are equal. An isosceles triangle is where only two of the sides are equal.
Let us recall the definition of an isosceles triangle. An isosceles triangle is a triangle with two equal or congruent sides. In this definition, it is not stated that it has exactly two equal sides. An equilateral triangle has three equal or congruent sides. If it has three equal sides, then it must have two equal sides. Therefore, an equilateral triangle is considered as an isosceles triangle. But, an isosceles triangle is not necessarily an equilateral triangle.
No
No.