Find the perimeter of the polygon with the given vertices.

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.

15 units use socratic

step-by-step explanation: 15 units

take it another

hi! i think the answer is 1/2 : )