Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to find the surface area of cylinders [title] Visualize the top and bottom of a cylinder. [step] A can of soup is the shape of a cylinder. If you think about it, the can has a top and a bottom that are the same.

Ending1: To get the surface area of a cylinder, first focus on the top and bottom circles of the can. Many cans of soup bend in half to make a flat surface. Ending2: Both of these ends are the shape of a circle. The first step to finding the surface area of your cylinder will be to find the surface area of these circular ends. Ending3: The top should be solid for a tin can, and the bottom should be solid for a tube can. Then, look at the top and bottom of the form. Ending4: Remember the first two measurements from step 7 when shopping for your cans: the top and bottom of the cylinder should be almost exactly the same. [substeps] A can of soup is also known as a " works surface.

Answer format: ending1/ending2/ending3/ending4