Answer:
40.5
Step-by-step explanation:
you need to add both bases
9+4.5=13.5
then divide that by two
13.5/2=6.75
the multiply by six
6.75*6=40.5
No, you are wrong, you only accounted for part of it.
the answer is (C) 40.5 cm^2
Add the two wing triangles to your 27 cm^2
2(6x2.25x0.5)=13.5
27+13.5=40.5
