Answer:
The three-dimensional figure is an octagonal prism
Step-by-step explanation:
Verify each case
case a) square prism
The net is made of 2 squares and 4 (rectangles or squares)
case b) square pyramid
The net is made of 1 square and 4 triangles
case c) octagonal prism
The net is made of 2 octagons and 8 (squares or rectangles)
case d) octagonal pyramid
The net is made of 1 octagon and 8 triangles
therefore
The three-dimensional figure is an octagonal prism
