A square is a rombus as it has four equal lines,which two of them are parallel to each other but a rombus is not a square as the lines should be perpendicular to each other.

Question 4:

i disagree with the statement,as a parallelogram does not have its sides perpendicular to each other.

Question 5:

Since E and F are midpoints,BF and ED should have the same distance,so BFDE should be a parallelogram.

By Bernard Ng

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