Answer:
Step-by-step explanation:
To find the area of a semicircle the formula is
[tex]\frac{\pi r^2}{2} \\=\frac{\pi 1^2}{2} \\=6.283m^2[/tex]
The square
[tex]A=a^2=2^2=4m^2\\6.283+4=10.283m^2[/tex]
[tex]A=wl=7*9=63m^2[/tex] (rectangle)
[tex]A=\frac{ab}{2} =\frac{6*4.5}{2} =13.5m^2\\63+13.5=76.5m^2[/tex] (triangle)
