This is a picture of a cube and the net for this cube. What is the surface area of this cube? Responses 90 mm² 90 mm² 225 mm² 225 mm² 450 mm² 450 mm² 1350 mm² 1350 mm² A cube and a net of the cube are shown. The edge length of the cube is labeled 15 millimeters. The net consists of 4 squares connected horizontally, and 1 square is attached to the top of the fourth square and 1 square is attached to the bottom of the first square. One square in the net is labeled with a side labeled 15 millimeters.