The converse of the statement is
if a rectangle doesn't have four sides the same length, then it isn't a square
Okay you have 2 sum unknow lets call them X+Y
so X+Y=33, 4X=108
Get X by it self then plug it in 4X=108
X=-Y+33
4(-y+33)= 108
-4y+132=108 Then subtract the 132
-4y=-24 Y=6 then to find X subtract 33-6=27
Y=6 X=27 if you check it works out
16
divide 12 by 3 since its 3/4 of the whole thing so 1/4=4
Supplementary angles because because angle 1 + angle 2 = 180° so they form a line