Prism
A prism is a three-dimensional figure with two congruent parallel polygonal bases. The remaining edges join corresponding vertices of the bases so that the remaining faces are rectangles.
Example 1
![Picture](/uploads/1/5/9/5/15954846/1369875569.jpg)
This scene in the the movie Harry Potter and the Deathly Hallows takes place on the Hogwarts grounds at Dumbledore's tomb. Voldemort has just reached Dumbledore's tomb and is about to open it to take the Elder Wand from Dumbledore's corpse. Dumbledore's tomb is a rectangular prism.
"And here it was, beside the lake, reflected in the dark waters. The marble tomb, an unnecessary blot on the familiar landscape. He felt again that rush of controlled euphoria, that heady sense of purpose in destruction. He raised the old yew wand: How fitting that this would be its last great act." -Harry Potter and the Deathly Hallows, Page 501
Example 2
![Picture](/uploads/1/5/9/5/15954846/1369957681.jpg)
This scene in the the movie Harry Potter and the Half Blood Prince takes place at Hogwarts when Harry is sitting at his desk reading his Potions textbook that used to belong to the Half Blood Prince. The box on Harry's desk is a rectangular prism.
This scene is not in the book.