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5-80.

Each morning as Bea makes her way to school, she makes a quick stop at the local doughnut shop. Today she bought two of her favorite kind of doughnut, chocolate with sprinkles. Before she takes a bite though, she starts thinking about the different cross-sections she might see within these doughnuts. She considers two possible slices. One slice would be vertically straight down the middle. The second slice would be horizontally in the middle. Sketch the two possible cross-sections from these two different slices. Homework Help ✎

The first would produce two separate circles as the cross-section. The second would produce a ring.