Analytic geometry... Pls explain!

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Analytic geometry... Pls explain!

by mjjking » Sat Feb 28, 2009 2:41 pm
A certain square is to be drawn on a coordinate plane. One of the vertices must be on the origin, and the square is to have an area of 100. If all coordinates of the vertices must be integers, how many different ways can this square be drawn?
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by Uri » Sat Feb 28, 2009 5:28 pm
https://www.beatthegmat.com/hard-mgmat-7 ... t9944.html

please see the answer provided by netigen.