Working on the making 7 congruent triangles from the pieces of a triangle dissection question I realized it's possible to do even better! So here it is for extra points:
Use six lines to cut a triangle into nine congruent triangles.
$\begingroup$
$\endgroup$
6
-
$\begingroup$ I assume that, like the other question, we cannot assume anything about the triangle's shape (it is arbitrary)? $\endgroup$ – bobble Aug 30 '20 at 20:10
-
$\begingroup$ this one is easier than others $\endgroup$ – Aakash Mathur Aug 30 '20 at 20:21
-
$\begingroup$ @bobble Yes, arbitrary triangle $\endgroup$ – Kikos Aug 30 '20 at 21:13
-
3$\begingroup$ square numbers are easy. $\endgroup$ – Jasen Aug 30 '20 at 22:14
-
1$\begingroup$ Actually, larger number is not always "better" than the smaller number. In this case, the 9 version is apparently (way) more trivial than the 7 version. $\endgroup$ – athin Aug 31 '20 at 1:17
|
Show 1 more comment
$\begingroup$
$\endgroup$
https://i.stack.imgur.com/OTqhf.png
Saves some formatting tokens to not use a spoiler. It's just an image after all.
