Yes, they always have 4 sides
Yes because they are quadrilateral polygons.
A square, always, a rhombus, always, a parallelogram, always, and rectangles, always.
All rectangles, including squares.
Yes because all rectangles are closed polygons with four straight sides - and that is what a quadrilateral is. Yes because all rectangles are closed polygons with four straight sides - and that is what a quadrilateral is. Yes because all rectangles are closed polygons with four straight sides - and that is what a quadrilateral is. Yes because all rectangles are closed polygons with four straight sides - and that is what a quadrilateral is.
No, a quadrilateral is not always a trapezoid. A trapezoid is specifically defined as a quadrilateral with at least one pair of parallel sides. While all trapezoids are quadrilaterals, not all quadrilaterals (such as rectangles, squares, or general irregular quadrilaterals) fit the definition of a trapezoid.
Not all quadrilaterals are rectangles. Some quadrilaterals are rectangles, and the rest are not. However, all rectangles are quadrilaterals.
Parallelogram., Rhombus, Trapezium and Kite. Squares and Rectangles have '4 right angles'.
In a quadrilateral, the diagonals are only congruent for rectangles (or squares, which is a special kind of rectangle). Note: they are not congruent for a Rhombus.
A quadrilateral (a 2-D figure made up of four sides) can be made up of any number of smaller shapes, including rectangles. In fact, a rectangle IS a quadrilateral.
squares and rectangles
trapezoids and rectangles, are both quadrilateral (which means shapes with 4 sides). rectangles and trapezoids are also polygons.
A quadrilateral has a total of 360 degrees. This is true for any four-sided polygon, regardless of the shape or type of quadrilateral (such as squares, rectangles, trapezoids, or rhombuses). The sum of the interior angles in a quadrilateral is always 360 degrees.