I have created a sample Quizlet for my geometry classes. Hit the "notecards" tab to check out the feature of flipping notecards. Then check out the test tab where you can make your own or search for tests that are already made. A variety of question formats such as multiple choice, true/false, fill in the blank, etc. can be found.
A link to my introduction page can be found here and a link to the diagnostic quiz that I have prepared for the beginning of the year can be found here.