ALL quadrilaterals have four sides and four angles. That's what 'quadrilateral' means.
The quadrilaterals include the parallelogram, the trapezium, the kite, and the irregular quadrilateral.
The parallelograms include the rhombus and the rectangle.
The rhombus and the rectangle both include the square.
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A polygon with four sides and four angles is a quadrilateral.
A quadrilateral is a 4 sided polygon with four angles.
All quadrilaterals have four sides and four angles, as well as four vertices.
A quadrilateral 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.