Question

you correctly chose a cylinder. how many of each shape make a cylinder? enter the number of circles found in the shape. circles ? rectangles & squares total shapes

Explanation:

Step1: Analyze the cylinder's components

A cylinder has two circular bases (top and bottom) and one rectangular (when unrolled) lateral surface. But for the circles: count the circular faces.
Looking at the cylinder, the top and bottom are circles, so that's 2 circles. Also, in the diagram, there are two circles shown with the rectangle, matching the cylinder's circular bases.
So the number of circles is 2.

Step2: (For completeness, though not asked here, rectangles: 1, total shapes: 2 + 1 = 3, but the question is about circles)

Answer:

2