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Answer:
[tex]198ft^{2}[/tex]
Step-by-step explanation:
Area of rectangle:
[tex]A=l*w[/tex]
[tex]A=18*9[/tex]
[tex]A=162[/tex]
Area of trapezoid:
[tex]A=\frac{a+b}{2} h[/tex]
[tex]A=\frac{3+9}{2} 6[/tex]
[tex]A=\frac{12}{2} 6[/tex]
[tex]A=6*6[/tex]
[tex]A=36[/tex]
Area of whole thing:
[tex]162+36[/tex]
[tex]=198[/tex]