AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!
Special Right Triangles
Isosceles Right Triangle:
The isosceles right triangle is also called the 45-45-90 triangle because of the measures of the angles.
Theorem: The 45-45-90 Triangle:
The hypotenuse of a 45-45-90 triangle is 2^½ times as long as a leg.
Theorem: The 30-60-90 Triangle:
The hypotenuse of a 30-60-90 triangle is twice as long as the short leg and the longer leg is 3^½ times longer than the shorter leg.
We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.
For general help, questions, and suggestions, try our dedicated support forums.
If you need to contact the Course-Notes.Org web experience team, please use our contact form.
While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!
