Respuesta :

Answer:

384 sq. ft.

Step-by-step explanation:

Surface Area

  • 2(LH + BH + LB)
  • 2(12 * 4 + 9 * 4 + 12 * 9)
  • 2(48 + 36 + 108)
  • 2(192)
  • 384 sq. ft.
LizzyIsTheQueen

Surface Area formula:

A = 2(Width x Length) + 2(Length x Height) + 2(Height x Width)

Surface Area forumla applied:

A 2(9 x 12) + 2(12 x 4) + 2(4 x 9)

Your answer:

384 sq ft