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Mathematics 20 Online
OpenStudy (anonymous):

how do you prove that a quadrilateral is a square

OpenStudy (rulnick):

Well, a quadrilateral is a square if, and only if, all four sides of the quadrilateral are of equal measure.

OpenStudy (anonymous):

the question on my worksheet says prove quad. MIKE is a square M(0,5) I(6,3) K(4,-3) E(-2,-1) how do i do that

OpenStudy (rulnick):

Oh, just find the lengths of the four sides and show they are the same. For instance, the distance from E to M is sqrt(6^2+2^2) = sqrt(40). The distance between each adjacent corner (graph it to see) must be this same value for it to be a square.

OpenStudy (anonymous):

i did the distance formula and i got squ. root of 40 for all of them what do i do next

OpenStudy (anonymous):

what ever ill just leave it like that and fail :(

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