What is the difference between a parallelogram and a trapezoid angles

A parallelogram is a figure with four straight sides whose opposite sides are parallel and equal in length and whose opposite angles are equal. A trapezoid is also a figure with four straight sides. However, only one pair of opposite sides is parallel.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

measuring things 1 litre of water