prove that the points A(2,3),B(-2,2),C(-1,-2)and D(3,-1) are the vertices of a square.
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arpita479:
but you tell me to all Answer all points not only 3 points
after then we find Pythagoras Theorem so when what you do in this question you only find ABB CCD not a d or AC
If all sides are equal then it can be rhombus but by Pythagoras theorem it is proved that it's angles are 90 degrees so I used Pythagoras theorem too it is the full answer
Please see second page of attachment I have attached two pages
but here only one page show a
that
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