EchinaforceÂ® Echinacea drops (tincture) and tablets - herbal remedy for colds and flu. EchinaforceÂ® Echinacea is a licensed traditional herbal remedy for colds and flu. It helps the body fight the symptoms of these infections by supporting the immune system, helping to maintain the body's resistance.
User: Which parallelogram has four right angles and four congruent sides? A. square B. rectangle C. trapezoid D. rhombus Weegy: The true statement is: A square is a rhombus. kyler07|Points 151|.
As a polygon, a quadrilateral has a two-dimensional shape with four sides and four angles. Examples of quadrilaterals are rectangles, parallelograms, squares and rhombuses. Only squares and rhombuses are considered regular quadrilaterals because their sides are all the same length. A square is a quadrilateral with four congruent sides, with the opposite sides parallel, and four right angles. A rhombus has four congruent sides that do not form right angles. Learn more about Shapes