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|.
1 Rhomboid â A quadrilateral whose opposite sides are parallel and adjacent sides are unequal, and whose angles are not right angles. 2  Rectangle â A parallelogram with four angles of equal size.  Rhombus â A parallelogram with four sides of equal length.