No but an equilateral triangle does.
isosceles
A kite or arrowhead.
sometimes
Sometimes
No but an equilateral triangle does.
No but an equilateral triangle does.
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.
triangle
A quadrilateral never has exactly 3 congruent angles. It can have none, two, two pairs of two, or four.
never
A parallelogram has 2 pairs of congruent angles of different sizes
No. Only sometimes. A quadrilateral can have any number of congruent angles ... none, 2, 3, or 4.
isosceles
A kite or arrowhead.
sometimes
sometimes