Answer:
4.5 [tex]ft^{2}[/tex]
Step-by-step explanation:
[tex]\frac{3*1.5}{2}[/tex] = 2.5
So, all 5 inches becomes 3 ft, so half of 3 is 1.5.
1.5 times 3 is 4.5, divided by 2 is 2.25.
2.25 is the shaded area
Two of the triangles combined is 4.5, and the small and big traingle combined is 6.75.