Question 1, 2 and 4 by Wu Shen

Q1) A square is a rhombus because the sides of the square and the rhombus are the same length and its is parallel to each other. However, a rhombus is not a square because the angles are not 90 degrees.

Q2) The figure is an isosceles trapezium. The right and left side of the isosceles trapezium is equal length and the top and bottom of the isosceles trapezium is parallel to each other. If one of the angles at the bottom is added with one at the top, it will be 180 degrees

Q4) No, all parallelogram is not squares. Parallelograms are squares only if all four sides are of the same length and all interior angles are 90^o.