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