Mathematics, 22.04.2020 21:35 deanlmartin

Which of the following would show that the diagonals of quadrilateral DEFG on the coordinate plane are perpendicular?

A. Show that slope of DF¯¯¯¯¯¯ = slope of EG¯¯¯¯¯¯.
B. Show that midpoint of DF¯¯¯¯¯¯ is the same as midpoint of EG¯¯¯¯¯¯.
C. Show that DF = EG.
D. Show that (slope of DF¯¯¯¯¯¯)(slope of EG¯¯¯¯¯¯) = –1.

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