Answer:
31.48 square feet
Explanation:
We can find the area of half the figure first.
Half the figure can be split up into the triangle and the semicircle.
Area of triangle:
1/2bh
Plug values in.
1/2(4)(3)
1/2(12)
6
Area of semicircle:
πr^2/2
Radius is half of Diameter.
Radius is 2.5. (5/2)
Plug values in.
π2.5^2/2
6.25π/2
9.7389372262
Round.
9.74
Add the area of triangle to area of semicircle to find area of half the figure.
6+9.74=15.74
Multiply by 2 to find area of whole figure.
15.74*2=31.48