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
The answer is D. For A, quadrilaterals are 2-dimensional figures with 4 straight sides, and the interior angles add up to 360 degrees. Examples of quadrilaterals are squares, parallelograms, and kites. Since a square and a parallelogram are 2-dimensional figures with 4 straight sides, and the interior angles add up to 360 degrees, they are quadrilaterals. For B, squares have 2 pairs of parallel lines, while a parallelogram has a pair of parellel line at each side. Hence, opposite sides of a square and a parallelogram are parallel. For C, a trapezoid has only a pair of parellel lines. If there were more than a pair of parallel lines, it would be a parallelogram. So, all of the statements are correct.
4) All parallelograms are squares?' Do you agree with this statement?Justify your answer with example/s.