For the parallelogram, find the value of the variables. show your work.

Y equals 9 because 3 times 9 equals 27 minus 6 equals 21

X equals 3 because 5 times 3 equals 15 plus to is 17

Keep in mind that parallelogram has two pairs of the same length sides

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.

answear:

a

step-by-step explanation: a