Answer:
area of base= 64mm2
area of each triangle = 48 mm2
surface area of each bead = 256 mm2
Step-by-step explanation:
area of base : 8 × 8 = 64
area of each triangles : 12 × 8 / 2 = 48
the surface area of each bead : 48 × 4 + 64 = 256
