No. Means that 2 of 3 angles are the same.
If an isosceles triangle is one that has two equal sides,then I guess every equilateral trinagle is isosceles.
no
Yes.
If you can only prove two sides of an apparently equilateral triangle to be congruent then you have to use isosceles.
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
sometimes, but not always
All isosceles triangles are not equilateral triangles
It depends on what information you do have.
All isosceles triangles are not equilateral triangles
equilateral, isosceles and scalene
It can be scalene or isosceles but not equilateral.
No because an equilateral triangle has 3 equal sides but an isosceles triangle has only 2 equal sides