User talk:Gaal Sandor

Welcome to Wikimedia Commons, Gaal Sandor!

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-- Wikimedia Commons Welcome (talk) 10:51, 11 June 2021 (UTC)

Notification about possible deletion

Some contents have been listed at Commons:Deletion requests so that the community can discuss whether they should be kept or not. We would appreciate it if you could go to voice your opinion about this at their entry. If you created these pages, please note that the fact that they have been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with them, such as a copyright issue. Please see Commons:But it's my own work! for a guide on how to address these issues. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

Affected:

• File:SphereInTetrahedron1200x960.jpg
• File:Derive the perimeter of a circle from its area.jpeg
• File:Find the area of a circle by cutting it to four quarters.jpeg
• File:Visual proof of the area of a circle equals 3point2 multiplied by the radius squared.jpeg

Yours sincerely, Belbury (talk) 12:49, 26 February 2024 (UTC)

When I created an account to edit Wikipedia, I used my common user name "Gmac4247". When I joined Vikiversity, I created a new account, because users usually use their real names there. I was obviously signed in with the latter one, when I uploaded these images, but I don't see that, as a problem. I have a third username as well; that's a different story.

File:Derive_the_perimeter_of_a_circle_from_its_area.jpeg contains no numerical value, and therefore represents a valid way to derive the circumference of a circle from the area, or vice versa, regardless of the coefficient between the squared radius and area of the circle.

The numeric value featured on File:SphereInTetrahedron1200x960.jpg is exactly the same, as featured in all related sources. Can be calculated via trigonometry.

File:Find_the_area_of_a_circle_by_cutting_it_to_four_quarters.jpeg is one of it's kind. It provides a unique insight on a geometry problem. It's also featured in several Wiki articles. Gaál Sándor (talk) 15:41, 27 February 2024 (UTC)