+0  
 
-2
198
2
avatar+4116 

Help 2

 Dec 17, 2018
 #1
avatar+4568 
+2

Hmm, is it (A), isometry?

 Dec 18, 2018
 #2
avatar+770 
+1

Yes, I think it is isometry. Isometry changes the direction by rotation, reflection, translation, ect. The original size of the shape does not change.

 Dec 18, 2018

30 Online Users

avatar
avatar
avatar
avatar
avatar
avatar
avatar