isosceles
Equilateral triangles have three congruent sides. That's the definition of an equilateral triangle. If it doesn't have three congruent sides, then it's not an equilateral triangle.
Its not a triangle if it has only two sides.
No TRIangle can have two equal sides it would be an angle. A triangle with 2 equal sides is called an isosceles triangle.
An isoceles triangle has two sides of equal length.
No, not in general. Only a right triangle has two sides which are perpendicular.
An acute triangle may have three, two, or no congruent sides.
If only two sides of a triangle are the same length it is an isosceles triangle. If all three sides are the same length it is an equilateral triangle.
note: TRIangle. a TRIangle always has 3 sides. not 2. THREE
It is impossible two have a triangle that only has two sides. By definition a triangle is a shape that has three sides.
Isosceles triangle.
Isosceles Triangle :)
An isosceles triangle.