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Daily Examples of Cylinders
Task 1a: You have to find some photos of cylinderial objects in your daily life. Post the photos in YOUR OWN BLOG. (Deadline: 21st August 2007 11:59p.m.)
Task 1b: You go to visit YOUR CLASSMATES' BLOGS and leave some comments on their photos. (Deadline: 24th August 11:59p.m.)
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What is a cylinder?
Notice some important facts about a cylinder:
1. It has a flat base and a flat top
2. The base is the same as the top, and also in-between
3. It has one curved surface, so it is not a polyhedron.
Let's drag the following cylinder so as to view it at different angles. (You can click the button - 'drag' to stop the cone moving and click the button again to resume it moving.)
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