Quadrilaterals are not triangles, and there is no such thing as a quadrilateral triangle. Perhaps you mean equilateral, in which case, it has 3 equal angles and 3 equal sides; the word equilateral actually means equal sides. And quadrilateral means four sides. Triangle means 3 angles.
The word "isosceles" comes from Greek roots and means "equal leg." An isosceles triangle has two sides of equal length.
An equilateral triangle is on in which all three sides are equal in length . An equilateral triangle is thus an equal-sided triangle.
Scalene
Isosceles triangle
Yes. The word 'equilateral' means 'equal' and 'lateral means sides, so an equilateral triangle means all of the sides are 'equal' or 'similar.'
By definition, an equilateral triangle has congruent sides. "Equi"has the same root as the word "equal," which is synonymous with "congruent," and "lateral" is based on the Latin word for "side." Thus, the word "equilateral" actually means "equal sides," which means they are "congruent."In fact, an equilateral triangle has three equal sides and three equal angles.
Quadrilaterals are not triangles, and there is no such thing as a quadrilateral triangle. Perhaps you mean equilateral, in which case, it has 3 equal angles and 3 equal sides; the word equilateral actually means equal sides. And quadrilateral means four sides. Triangle means 3 angles.
The word "isosceles" comes from Greek roots and means "equal leg." An isosceles triangle has two sides of equal length.
An equilateral triangle is on in which all three sides are equal in length . An equilateral triangle is thus an equal-sided triangle.
Scalene
Depends, what shape are you talking about? Is it a triangle with no equal sides?
A triangle with all equal sides....?
Isosceles triangle
An isosceles triangle has exactly two sides which are equal. (The word congruent usually applies to triangles, not sides.)
No. I think it can. An isosceles triangle by definition has two equal sides. It is possible to draw a triangle with a right angle and two equal sides. The word isosceles is actually a Greek one standing for: having (two) equal sides. I thought that, in English, isosceles stands for "equilateral". If not, then yes it can be a triangle with two equal sides adjacent to the right angle. (hypotenuse excluded, anyway)
A triangle.