Answer:
well... this normal addition
Step-by-step explanation:
9+8=17
9+1=10
5+4=9
5+2=7
3+4=7
3+1=4
So the total area will be two times the area of the trapezoid described for the top half.
The area of a trapezoid is:
A=h(b1+b2)/2 so two times that area is:
A=h(b1+b2), and we can see that h=12, b1=16, and b2=30 so
A=12(16+30)
A=552 in^2
