A(-7,1)
B(-3,5)
C(1,1)
D(-3,-3)
AC and BD are diagonals both are same
[tex]\\ \sf\longmapsto AC=\sqrt{1+8)^2+(1-1)^2}[/tex]
[tex]\\ \sf\longmapsto AC=\sqrt{8^2+0^2}[/tex]
[tex]\\ \sf\longmapsto AC=\sqrt{64}[/tex]
[tex]\\ \sf\longmapsto AC={8}units[/tex]
