A “wet floor” warning sign is in the shape of a triangular pyramid without a base. The edge length of the base equilateral triangle is 15 inches, the height of the base triangle is 13 inches, and the height of the triangular faces is 18 inches. How much fabric is needed to make the sign given the base does not need fabric?(1 point)

Responses

292.5 in.2
292.5 in. squared

502.5 in.2
502.5 in. squared

405 in.2
405 in. squared

351 in.2