Mathematics, 20.07.2019 03:00 nauticatyson9
The endpoints of one diagonal of a rhombus are (-5,2) and (1,6). if the coordinates of the 3rd vertexare (-6,10), what arethe coordinates of the 4th vertex? a.(2,-2) ,0) c.(4,8) ,8)
Answers: 1
![\vec{BE}=[-2-(-6);\ 4-10]=[4;\ -6]](/tpl/images/0110/1873/66136.png)
![D(x;\ y)\\\\\vec{ED}=[x-(-2);\ y-4]=[x+2;\ y-4]\\\\\vec{ED}=\vec{BE}\ therefore\\\\ \ [x+2;\ y-4]=[4;\ -6]\to x+2=4\ and\ y-4=-6\\\\x=2\ and\ y=-2\\\\\ \boxed{A.\ (2;\ -2)}](/tpl/images/0110/1873/45345.png)
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The endpoints of one diagonal of a rhombus are (-5,2) and (1,6). if the coordinates of the 3rd verte...
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