Answer: a 93
Step-by-step explanation:
From the given figure, it can be seen that there are one rectangle having dimensions [tex]20\times4[/tex] and two semicircle with same diameter of 4 inches.
Radius of semicircles = [tex]\frac{4}{2}=2\ in.[/tex]
Area of semicircle = [tex]\frac{1}{2}\pi r^2[/tex]
Now, the area of the figure=Area of rectangle+Area of two semicircles
=[tex]20\times4+2(\frac{1}{2}\pi (2)^2)\\=80+(3.14)(4)\\=80+12.56=92.56\approx93\ in^2[/tex]
