Answer:
C. 48 cm²
Step-by-step explanation:
You want the area of the net shown for a triangular prism.
The area of the net is the sum of the two triangular areas and the area of the long central rectangle.
A = 2(1/2bh) +LW
A = (3 cm)(4 cm) +(4+3+5 cm)(3 cm) = (3 cm)(16 cm)
A = 48 cm² . . . . . . . . matches choice C