Please help ASAP (simple math) due in one day IF U ARE GOOD AT MATH HELP

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

i would say c is the best answer, hope it's right!

good luck! =)

cutie~

.19875994384

step-by-step explanation:

1699/ 8548

if you was gonna solve for a, a is a   < -12