Guaranteach - Lesson: Double Diagonals of a Rectangle Tutorial & Help

Guaranteach - A Better Way to Learn
Warning: It appears that you have JavaScript turned off!

Please make sure that JavaScript is enabled in your browser.
In addition, we recommend using the latest Internet Explorer (7+) or Firefox (3+) browser to view our site.

texts

tests

curricula

Lessons

Fundamentals

Basic Math

Fractions

Decimals

Introduction To Decimals (12)
Place Values and Rounding in Decimals (7)
Adding Decimals (6)
Subtracting Decimals (6)
Multiplying Decimals (8)
Dividing Decimals (9)
Decimals, Fractions and Percentages (6)
Combining Fractions and Decimals (9)

Measurement

Pre Algebra

Probability

Beginning Algebra

Intermediate Algebra

Advanced Algebra

Graphing

Geometry

Trigonometry

Linear Algebra

Calculus

Statistics

Advanced Statistics

Processes

Home

My Account

My Profile

Double Diagonals of a Rectangle By Justus

Following this lesson, you'll know that when both diagonals are drawn in on a rectangle, two pairs of congruent isosceles triangles are formed. It may help to have some experiene with congruent triangles and rectangles.

Show Me Another Way

Thanks for reporting an error! While we screen every video and quiz for accuracy, every now and then we miss a mistake. We rely on the community to help us catch these bugs and bring them to our attention. If you have any notes to add to give us more information on the error you spotted, please provide the information below. This will help our reviewers identify the mistake more easily. Thanks!

Cancel Submit

So, you think you can teach this better? Great! If you have a short video (or would like to create one) on your computer, then upload it here and we will review it before integrating it into the Guaranteach curriculum (submit .wmv, .avi, .mp3, .mp4 files only please).
Video File * :
Or
Video Url * :
Submit Cancel

You have 5 video previews left. Sign up for a free trial to access 10 more videos. Or, subscribe now for unlimited access to our library!

Not sure about signing up? Click here to read more about Guaranteach!