1 answer
(click or scroll down)
The triangular prism net is made up of three rectangles: a middle rectangle with a length of 8mm and a width of 7mm, and two outer rectangles that are right triangles with perpendicular sides measuring 6mm and a hypotenuse measuring 10mm.
The net shows all sides of the prism, including the top and bottom rectangles that are not visible when the prism is folded. The dashed lines represent the edges of the middle rectangle that are not visible when looking at the prism from the outside.
By visualizing the net, one can see how the prism is constructed and how the different rectangles fit together to form the shape of the prism.