Q3) Explain how a square is: (a) a quadrilateral (b) a parallelogram (c) a rhombus (d) a rectangle

Explanation

(i) a quadrilateral
Solution A square is a quadrilateral, as it has four equal sides.
(ii) a parallelogram
Solution A square is a parallelogram, as it contains the pairs of opposite sides equal.
(iii) a rhombus
Solution A square is a rhombus, as it has four equal sides and diagonals bisect at `90^@`
(iv) a rectangle
Solution A square is a rectangle, as it has each adjacent angle at `90^@` degrees and opposite sides are equal.