The best way for students understand and memorize the rules for special right triangles is practice, practice, practice. As they say, practice make permanent!
This worksheet could be used as a homework assignment or even a quiz over 30-60-90 triangles only. All answers are required to be in simplest radical form. Answers are included!
Here are some of my other products you might be interested in:
Special Right Triangles 45-45-90 Practice Worksheet
Special Right Triangles Game or Practice Problems