Stephan has a box in the shape of a hexagonal prism where the hexagonal bases are regular. a net of the box is below. note: figure is not drawn to scale. he measured the height of the box to be 7 in. then, stephan drew a line from the center of one of the hexagons to each of its vertices and noticed that all the triangles he created have a height of 9 in and a base of 10 in. note: figure is not drawn to scale. what is the surface area of the hexagonal prism? 960 sq in 750 sq in 690 sq in 1,380 sq in