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Resources Aops Wiki 2023 AMC 12A Problems/Problem 21: Revision history

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2023 AMC 12A Problems/Problem 21: Revision history

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(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)

27 September 2025

curprev 15:5215:52, 27 September 2025 Mathisez talk contribs m 13,958 bytes −37 →Diagram

5 July 2025

curprev 18:3318:33, 5 July 2025 Weimi23 talk contribs 13,995 bytes +9 →Solution 1
curprev 18:3318:33, 5 July 2025 Weimi23 talk contribs m 13,986 bytes −1 →Solution 1

24 June 2025

curprev 23:4023:40, 24 June 2025 Grogg007 talk contribs m 13,987 bytes +58 →Solution 1

17 June 2025

curprev 20:5420:54, 17 June 2025 Grogg007 talk contribs m 13,929 bytes +4 →Solution 1

11 June 2025

curprev 13:1513:15, 11 June 2025 Grogg007 talk contribs m 13,925 bytes +87 →Solution 1

6 June 2025

curprev 05:3405:34, 6 June 2025 Bigturtle2011 talk contribs 13,838 bytes +1 →Solution 2 (Cheese + Actual way)

5 November 2024

curprev 06:3906:39, 5 November 2024 Little-fermat talk contribs 13,837 bytes +107 →Video Solution by Math-X

4 November 2024

curprev 17:5117:51, 4 November 2024 Judokid talk contribs 13,730 bytes +10 →Solution 6 (Case Work)
curprev 17:5017:50, 4 November 2024 Judokid talk contribs 13,720 bytes −24 No edit summary
curprev 17:4817:48, 4 November 2024 Judokid talk contribs 13,744 bytes −13 →Solution 5

3 November 2024

curprev 16:3316:33, 3 November 2024 Gannit talk contribs m 13,757 bytes +23 →Solution 5

22 October 2024

curprev 20:0220:02, 22 October 2024 Mathboy282 talk contribs 13,734 bytes +501 →Supplement

10 October 2024

curprev 11:4411:44, 10 October 2024 Mathboy282 talk contribs 13,233 bytes −66 →Video Solution

6 October 2024

curprev 23:0323:03, 6 October 2024 Fireball9746 talk contribs m 13,299 bytes +44 →Video Solution
curprev 23:0323:03, 6 October 2024 Fireball9746 talk contribs m 13,255 bytes −40 →Video Solution by Math-X (First fully understand the problem!!!)

30 September 2024

curprev 23:4023:40, 30 September 2024 Mathboy282 talk contribs 13,295 bytes +411 →Solution 6 (Case Work)

5 September 2024

curprev 07:3907:39, 5 September 2024 Math-x talk contribs 12,884 bytes +137 No edit summary

27 August 2024

curprev 15:0815:08, 27 August 2024 Oinava talk contribs m 12,747 bytes +148 →Solution 8 (Dodecahedron Schlegel (Planar Graph) Diagram)

26 August 2024

curprev 23:1023:10, 26 August 2024 Oinava talk contribs m 12,599 bytes −2 →1 minute solution by MegaMath
curprev 23:0923:09, 26 August 2024 Oinava talk contribs m 12,601 bytes −39 →Video Solution by CosineMethod [🔥Fast and Easy🔥]
curprev 23:0923:09, 26 August 2024 Oinava talk contribs m 12,640 bytes +253 →Solution 8 (Dodecahedron Schlegel Diagram)

13 June 2024

curprev 15:5515:55, 13 June 2024 Hw73 talk contribs m 12,387 bytes +1 →Solution 3
curprev 15:5515:55, 13 June 2024 Hw73 talk contribs 12,386 bytes +1 →Solution 3

31 May 2024

curprev 16:0716:07, 31 May 2024 Ethanzhang1001 talk contribs 12,385 bytes +37 No edit summary

31 March 2024

curprev 09:0809:08, 31 March 2024 Learner4321 talk contribs 12,348 bytes −1 →Solution 2 (Cheese + Actual way)

25 February 2024

curprev 20:5620:56, 25 February 2024 Megahertz13 talk contribs 12,349 bytes +85 →Problem
curprev 20:5620:56, 25 February 2024 Megahertz13 talk contribs 12,264 bytes −99 →1 minute solution by MegaMath

28 January 2024

curprev 20:3420:34, 28 January 2024 Jimmy20090411 talk contribs 12,363 bytes +106 →Video Solution by OmegaLearn

27 November 2023

curprev 16:4616:46, 27 November 2023 Jjaamm talk contribs 12,257 bytes +9 →Solution 9 (Symmetry)
curprev 13:0513:05, 27 November 2023 Jjaamm talk contribs m 12,248 bytes +13 →Solution 9 (Symmetry)
curprev 13:0413:04, 27 November 2023 Jjaamm talk contribs m 12,235 bytes +26 →Solution 9 (Symmetry)
curprev 13:0313:03, 27 November 2023 Jjaamm talk contribs 12,209 bytes +4 →Solution 9 (Symmetry)
curprev 13:0213:02, 27 November 2023 Jjaamm talk contribs 12,205 bytes +27 →Solution 9 (Fast)
curprev 13:0013:00, 27 November 2023 Jjaamm talk contribs 12,178 bytes +2 →Solution 9 (Fast)
curprev 13:0013:00, 27 November 2023 Jjaamm talk contribs 12,176 bytes +7 →Solution 9 (Fast)
curprev 12:5812:58, 27 November 2023 Jjaamm talk contribs 12,169 bytes +160 No edit summary
curprev 12:5612:56, 27 November 2023 Jjaamm talk contribs 12,009 bytes +944 No edit summary

25 November 2023

curprev 19:1019:10, 25 November 2023 Daijobu talk contribs m 11,065 bytes +102 No edit summary
curprev 01:4501:45, 25 November 2023 Lopkiloinm talk contribs 10,963 bytes +13 →Solution 8 (Dodecahedron Schlegel Diagram)
curprev 01:4201:42, 25 November 2023 Lopkiloinm talk contribs 10,950 bytes +34 →Solution 8 (Dodecahedron Schlegel Diagram)
curprev 01:4001:40, 25 November 2023 Lopkiloinm talk contribs 10,916 bytes +482 →Solution 8 (Dodecahedron Schlegel Diagram)
curprev 01:3501:35, 25 November 2023 Lopkiloinm talk contribs 10,434 bytes +1 →Solution 8 (Dodecahedron Schlegel Diagram)
curprev 01:3501:35, 25 November 2023 Lopkiloinm talk contribs 10,433 bytes +103 →Solution 8 (Dodecahedron Schlegel Diagram)
curprev 01:3401:34, 25 November 2023 Lopkiloinm talk contribs 10,330 bytes −1,009 →Solution 8 (Dodecahedron Schlegel Diagram)
curprev 01:2401:24, 25 November 2023 Lopkiloinm talk contribs 11,339 bytes −102 →Solution 8 (Dodecahedron Schlegel Diagram)
curprev 01:2101:21, 25 November 2023 Lopkiloinm talk contribs 11,441 bytes −236 →Solution 8 (Dodecahedron Schlegel Diagram)
curprev 01:1301:13, 25 November 2023 Lopkiloinm talk contribs 11,677 bytes +13 →Solution 8 (Dodecahedron Schlegel Diagram)
curprev 01:1301:13, 25 November 2023 Lopkiloinm talk contribs 11,664 bytes +1,438 →Solution 7 (efficient)

23 November 2023

curprev 11:4511:45, 23 November 2023 Trevian1 talk contribs m 10,226 bytes +14 →Solution 1

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