Answer
True
Work Step by Step
The parallelogram with all four angles at the right angle and all sides are equal in length, it is called a square. Square has opposite sides parallel. The diagonals of square intersect(bisects) each other.A square has it all four angles at right angles.
A rectangle is a closed figure with four sides with all four angles right angles. A rectangle is a figure with opposite sides of equal lengths. A square is a figure with four sides equal in length. So,some of those rectangles are not squares whose adjacent sides are unequal.
The given statement is true.