Matt has a block. He uses one of the flat surfaces of the block to trace a triangle. What type of solid figure is Matt's block?

Matt's shape is likely to be a prism. A prism is a solid three dimensional or geometric figure with two polygonal faces in parallel planes. The parallel face is a triangle while the other face could be rectangular or cuboid in shape. The cross section of a prism is the same across its length. This shape is also a polyhedron.