Respuesta :

Answer: 544 sq. inch

Step-by-step explanation:

12 x 8 x 0.5 x 2 + 10 x 14 x 2 + 12 x 14 = 544

Surface of triangle = 98
x 2
= 196

10x14= 140
x3
= 420

420 + 196 = 616 inches