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Answer:
Step-by-step explanation:
[tex]Area \ of \ triangle = \dfrac{1}{2}bh\\[/tex]
[tex]=\dfrac{1}{2}*8*3\\\\\\= 4*3\\\\\\= 12 \ ft^{2}[/tex]
Area of rectangle = length *width
= 8 * 5
= 40 ft²
Area of the figure = Area of rectangle + 2* area of the triangle
= 40 + 2*12 = 40 + 24
= 64 ft²