Respuesta :

Answer:

242 sq. cm.

Step-by-step explanation:

Surface Area

  • 2(LH + BH + LB)
  • 2(10 × 3 + 7 × 3 + 10 × 7)
  • 2(30 + 21 + 70)
  • 2(121)
  • 242 sq. cm.