Explanation:
A square is a 4-sided shape (called a quadrilateral) that has all equal sides and all equal 90 degree angles. Because the angles are all the opposite sides are parallel. A rhombus is a shape with all equal sides. Since a square has all equal sides, a square is a rhombus. A rhombus is a shape with all equal sides. Since a square has all equal sides, a square is a rhombus. A parallelogram is a shape where both sets of opposite sides are parallel. Since the opposite sides of a square are parallel, a square is also a parallelogram So both Jeff and Brianna were correct.