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 A rectangle is a parallelogram that has four opposite, parallel, congruent sides. 2  The corners of the rectangle form a right angle. 3  The only difference between a rectangle and a square is that the rectangles sides are not all equal. 4  A rhombus has four equal sides. The opposite sides are parallel and all corners of the square form a right angle. 2  A rectangle is a parallelogram that has four opposite, parallel, congruent sides. 3  The corners of the rectangle form a right angle. 4  The only difference between a rectangle and a square is that the rectangles sides are not all equal.