Mathematics, 28.05.2020 01:06 bchamp2005p5upqx

Which characteristics will prove that ΔDEF is an acute, isosceles triangle?

a. segment DE and segment EF are congruent to each other but not to segment DF, and their slopes are not related.
b. segment DE and segment EF are congruent, and their slopes are opposite reciprocals.
c. segment DE is larger than segment EF, and their slopes are not related.
d. segment DE is larger than segment EF, and their slopes are opposite reciprocals.

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Which characteristics will prove that ΔDEF is an acute, isosceles triangle?

a. segment D...

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