-
Shearer Animations!
- Shearer Action 1! (Regular Octagon Problem)
- Shearer Action 2! (Semicircular Angle Problem)
- Shearer Action 3!
- Shearer Action 4!
- Shearer Action 5!
- Shearer Action 6!
- Shearer Action 7!
- Shearer Action 8!
This activity is also part of one or more other Books. Modifications will be visible in all these Books. Do you want to modify the original activity or create your own copy for this Book instead?
This activity was created by '{$1}'. Do you want to modify the original activity or create your own copy instead?
This activity was created by '{$1}' and you lack the permission to edit it. Do you want to create your own copy instead and add it to the book?
Shearer Animations!
Tim Brzezinski, Jan 27, 2019
Contains animations inspired by problems posed by Catriona Shearer (on Twitter): https://twitter.com/Cshearer41
-
1. Shearer Action 1! (Regular Octagon Problem)
-
2. Shearer Action 2! (Semicircular Angle Problem)
-
3. Shearer Action 3!
-
4. Shearer Action 4!
-
5. Shearer Action 5!
-
6. Shearer Action 6!
-
7. Shearer Action 7!
-
8. Shearer Action 8!
Shearer Action 1! (Regular Octagon Problem)
Creation of this resource was inspired by a problem posted by Catriona Shearer (on Twitter).
The 2 LARGE POINTS are moveable.
The octagon shown here is regular. The green quadrilaterals are squares with equal areas.
Lines and segments that appear to be parallel ARE parallel.
How can we formally prove what is dynamically illustrated here?
Quick (Silent) Demo
Saving…
All changes saved
Error
A timeout occurred. Trying to re-save …
Sorry, but the server is not responding. Please wait a few minutes and then try to save again.