27 February 2022

• curprev 22:4222:42, 27 February 2022 Ihatemath123 talk contribs 8,333 bytes +1,937 No edit summary

2 March 2021

• curprev 22:2622:26, 2 March 2021 Omerselim1 talk contribs 6,396 bytes +1,462 No edit summary

18 July 2016

• curprev 22:1222:12, 18 July 2016 1=2 talk contribs m 4,934 bytes +34 →See Also

5 July 2016

• curprev 18:3718:37, 5 July 2016 Bobafett101 talk contribs m 4,900 bytes −3 →Solution 2

15 February 2016

• curprev 19:0019:00, 15 February 2016 Mj434 talk contribs m 4,903 bytes 0 →Soluiton 4

25 January 2016

• curprev 21:0121:01, 25 January 2016 Whatshisbucket talk contribs 4,903 bytes +946 Added fourth solution.

31 March 2014

• curprev 21:5321:53, 31 March 2014 5849206328x talk contribs 3,957 bytes +151 →Solution 3
• curprev 21:5021:50, 31 March 2014 5849206328x talk contribs 3,806 bytes +1,482 →Solutions

3 July 2013

• curprev 17:5117:51, 3 July 2013 Etude talk contribs 2,324 bytes +15 No edit summary

21 November 2012

• curprev 17:3717:37, 21 November 2012 SuperSnivy talk contribs 2,309 bytes 0 No edit summary

17 September 2012

• curprev 14:0714:07, 17 September 2012 1=2 talk contribs m 2,309 bytes +28 →Solution

16 April 2012

• curprev 12:0112:01, 16 April 2012 1=2 talk contribs m 2,281 bytes 0 No edit summary

29 September 2011

• curprev 09:4409:44, 29 September 2011 1=2 talk contribs 2,281 bytes +1,202 →Solution

12 June 2011

• curprev 01:4001:40, 12 June 2011 Zero.destroyer talk contribs 1,079 bytes 0 →Solution 2
• curprev 01:4001:40, 12 June 2011 Zero.destroyer talk contribs 1,079 bytes −650 →Solution 1

2 April 2010

• curprev 19:1319:13, 2 April 2010 5849206328x talk contribs 1,729 bytes +814 No edit summary

6 March 2010

• curprev 16:2016:20, 6 March 2010 Zero.destroyer talk contribs 915 bytes −12 No edit summary
• curprev 16:2016:20, 6 March 2010 Zero.destroyer talk contribs 927 bytes +631 No edit summary

30 December 2008

• curprev 14:3514:35, 30 December 2008 Minsoens talk contribs 296 bytes +296 New page: ==Problem== A given tetrahedron <math>ABCD</math> is isosceles, that is, <math>AB=CD, AC=BD, AD=BC</math>. Show that the faces of the tetrahedron are acute-angled triangles. ==Solution== ...