DavidB4-bot
→top: clean up & uniformity
17:25
Toadaron
clarification
16:17
+26
Foxtrot
subcat
02:04
+6
Aschlafly
Reverted edits by GarryHenry (Talk) to last version by Foxtrot
20:10
-2,606
GarryHenry
FIRE THE PEWPEWLAZ0RZ!
20:09
+2,606
subcat, wikify
21:37
-7
MexMax
New page: Lines or surfaces are '''perpendicular''' if they are at right angles to one another. The mathematical opposite is parallel. category:mathematics
23:02
+171