Asquare painting is surrounded by a frame. the outside edges of the frame are x inches in length, and the frame is 3 inches thick. what is the total area of the frame?
a)-12x+36 b)12x-36 c)x^2+12x+36 d)x^2-12x-36 is it c or d?

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)

3 3 6, because in every triangle the longer side is always shorter than the sum of the other two