Not sure what a "quadrilaters" is.
A quadrilateral is a plane (2-dimensional) figure with four straight sides. It can have all four angles different. It can have two congruent angles (kite), 3 congruent angles (no specific name), 2 pair of two congruent angles (parallelogram/rhombus), or four congruent angles (rectangle/square).
No but an equilateral triangle does.
No but an equilateral triangle does.
A quadrilateral never has exactly 3 congruent angles. It can have none, two, two pairs of two, or four.
sometimes
sometimes
A triangle with three congruent angles
A standard dart, which is often used in the game of darts, typically has three congruent angles. These angles are found in the triangular shape of a standard dartboard, where the angles of the dart's flight can be considered congruent when the dart is symmetric. However, the specific design of the dart can vary, so it's important to note that not all darts will have exactly three congruent angles.
All three sides are congruent (equal in length); all three angles are congruent (same measure).All three sides are congruent (equal in length); all three angles are congruent (same measure).All three sides are congruent (equal in length); all three angles are congruent (same measure).All three sides are congruent (equal in length); all three angles are congruent (same measure).
Equilateral triangles have three congruent sides and three congruent angles
A quadrilateral shape has four sides and four internal angles. A triangle has three sides and three internal angles. Therefore there is no such thing as a quadrilateral triangle.
an equilateral triangle
Equilateral TriangleThis triangle has all three sides and all three angles congruent.