Im stuck I need help with this question

24

Step-by-step explanation:

To find the perimeter, you just need to add all the sides. So: 4 + 4 + 8 + 8 = 24.

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.