6 November 2021

• 21:3721:37, 6 November 2021 diff hist +2 2008 AMC 10B Problems/Problem 21 →Solution 2 current
• 21:3521:35, 6 November 2021 diff hist −2 2008 AMC 10B Problems/Problem 21 →Solution 2
• 21:3121:31, 6 November 2021 diff hist +10 2008 AMC 10B Problems/Problem 21 →Solution 2
• 21:3021:30, 6 November 2021 diff hist +715 2008 AMC 10B Problems/Problem 21 No edit summary

17 January 2021

• 00:5400:54, 17 January 2021 diff hist +108 m Combinatorial identity →Examples

24 October 2020

• 17:4717:47, 24 October 2020 diff hist 0 m 2020 AMC 10A Problems/Problem 17 →Solution 2

2 July 2020

• 19:0219:02, 2 July 2020 diff hist 0 Incircle No edit summary
• 19:0219:02, 2 July 2020 diff hist +2 Incircle No edit summary
• 19:0219:02, 2 July 2020 diff hist +17 m Incircle No edit summary