Susan questioned several dozen people to find out their height and shoe size she is planning on using the data to develop an equation the will predict a person's shoe size based on their height what would be the independent variable

900 degrees

step-by-step explanation:

it would have to be 3/0

(-3,1) and (5, -2)

it is given that, b ≅ bc and ad ≅ cd  

we need bd perpendicular to ac, then only we can say   triangles axb and cxb are congruent using the hl theorem.

if bd perpendicular to ac, means that ab and cb are the hypotenuse of triangles axb and cxb respectively.

from the given information abcd is a square

if bd and ac bisect each other then ax = cx

then only we can   immediately possible to prove that triangles axd and cxd are congruent by sss congruence theorem.