Question 1, 2, 4 by Stacey Yip

Question 1:    

'A square is a rhombus but a rhombus is not a square'.

This statement is true as every square has 4 equal sides like the rhombus, but not all rhombuses have right angles like the square.

Question 2:
Which of the given statements is correct? Justify your answer/s with examples.
A ) A square and a parallelogram are quadrilaterals.
B ) Opposite sides of a square and a parallelogram are parallel.
C ) A trapezoid has one pair of parallel sides.
D ) All the above
Statement A and B is correct. A quadrilateral has four sides which a  square and parallelogram has. Both a square and a parallelogram has two pairs of parallel lines.

Question 4:
'All parallelograms are squares?' Do you agree with this statement?
Justify your answer with example/s.
I disagree that all parallelograms are squares. A square has to have right angles while not all parallelograms have a right angle. However, a square can be a parallelogram as it has 2 pairs of parallel lines.