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|.
Differences between a square parallelogram and a non-square parallelogram: a square parallelogram has all 4 sides equal, only some non-square parallelograms have all 4 sides equal (namely the rhombuses). A square parallelogram has 4 right angles, but only some non-square parallelograms have 4 right angles (namely rectangles).