A prism with a pentagon-shaped cross-section is a pentagonal prism ... area of the prism is made up of five faces, which are two right-angled triangles and three rectangles.

Space to play or pause, M to mute, left and right arrows to seek ... The Pentagon is another example of a prism — a pentagonal prism, in fact, with five rectangular faces connecting two ...

Pat O'Dwyer from Kenmare Vocational School, Co Kerry, said his students were unhappy with question 4 - a pentagonal prism which took up almost a quarter of a page. He said it involved very steep ...