Answer :

Use the distance formula. The distance formula is: 


If you input the values, you will get: 

A to B=[tex]\sqrt{13}[/tex]

B to C=[tex]\sqrt{13}[/tex]

C to D=[tex]\sqrt{13}[/tex]

D to A=[tex]\sqrt{13}[/tex]

It is a square.

Hope that helped!

~Cam943, Moderator


it is a square use geogebra and you will see

Step-by-step explanation:

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