Classifying Quadrilaterals

A quadrilateral is a polygon with four sides, four vertices, and four angles.

A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length.

Yes, a square is a special type of rectangle where all four sides are equal in length.

A trapezoid is a quadrilateral with at least one pair of parallel sides.

Yes, a parallelogram can have right angles, but it is not always the case.

A rhombus is a quadrilateral with all four sides of equal length and opposite angles that are equal.

Yes, all rectangles are parallelograms because they have opposite sides that are parallel and equal.

All squares are rhombuses, but not all rhombuses are squares.

The sum of the interior angles of a quadrilateral is 360 degrees.

Yes, an isosceles trapezoid has non-parallel sides that are equal in length.