A quadrilateral with no right-angles would be a rhombus (or parallelogram)
A rhombus has four sides, with opposite corner angles equal.
Kite, arrowhead, and scalene quadrilaterals.
A Rhombus has two pairs of congruent sides and no right angles.
Any quadrilateral with sides of unique lengths (no two sides with the same length)
trapezium
Its a square because a square has 4 right angles and a QUADrilatiral has 4 sides. also congruent means exactly the same and all four sides of a square are the same.
Is either a square or rectangle.
It has no specific name.
Square
A rectangle
a square
parallelogram
A rectangle.
rhombus
A Rhombus.
Two pairs of equal sides and four right angles.
triangle
It can have 2 right angles but normally none unless it is an isosceles trapezoid in which case it will have 2 pairs of congruent base angles
A General Quadrilateral
A rectangle has two pairs of congruent sides, but any pair of adjacent sides is non-congruent.