Answer:
He will choose the con and build a cylinder as a model
Explanation:
The question here says that Rafael wants to build a model of a real object. He is going to use 2 circles and 1 rectangle.
If he uses 2 circles and a rectangle, there is a definite tendency that he is going to make a cylinder with those shapes.
The circles will be on top and bottom covering the shape/container created by the rectangle.
Before the enclosure of the rectangle with the circles,the rectangle is folded/rolled up(it has to be folded to have some space inside of it) to create a certain shape that looks like that of a big pipe and then the circles are added to the top and bottom to create a cylinder