Answer:
67.5
Step-by-step explanation:
right angle =90 degree
total = 360 degree
360-90=270
270÷4=67.5
80 sqcm
area of the full rectangle is 96 sqcm (12x8) and then you subtract the area of the cutout (4x4)
X
G
D
E
EW
H
F
I
U
TD
SQ
W
4
FW
S
WS
Negative one,negative ten
positive seven,negative eleven
