Answer: 130.5
Explanation:
Divide the object into 2 separate shapes and find areas
(Forget about the cutout for now, imagine a part of original figure)
rectangle:
Area (A)= base (b) x Height (h)
A=bh
Plug-in
A= (18)x8 (because both are 9 add them)
A= 144
Triangle:
A=1/2bh
A=1/2 9(5)
A= 22.5
incomplete total: 166.5
cutout:
A=bh
A = 9x4 (because the opp. is 8 and the known is 4, subtract: 8-4)
A= 36
Subtract incomplete total from cutout
166.5-36=130.5