whats the answer to this ?

Answer: [tex]312 ft^{2}[/tex]
Step-by-step explanation:
Area of Rectangle = bh = 16 ft x 18 ft = 288 [tex]ft^{2}[/tex]
Area of Triangle = 1/2 bh = 1/2 x (16-12) ft x (6) ft x 2 (There's 2 triangles) = 24 [tex]ft^{2}[/tex]
24 ft^2 + 288 ft^2 = 312 ft^2