SOLUTION: How do you prove that a square plotted on graph paper is a square?

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Question 189997: How do you prove that a square plotted on graph paper is a square?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
First, prove that all of the angles of the quadrilateral are all 90 degrees. From there, show that all of the sides are equal to one another. Once you've done those two things, you've shown that the quadrilateral is a square.