To make a costume, rachel uses 6 yards of material and 3 yards of trim. suppose she uses a total of 48 yards to make several costumes. how many yards of trim does she use. write the rule you used to find the number of yards of trim.

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.