Answer:
Step-by-step explanation:
1. To find the area of a semicircle the formula is
[tex]A=\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]
2. Triangle
[tex]A=\frac{ab}{2} \\=\frac{6*2.5}{2} \\=7.5m^2\\7.5*2=15m^2[/tex]
Rectangle
[tex]A=wl=8*13=104m^2[/tex]
[tex]104-15=89m^2[/tex]
3.
Semicircle
[tex]A=\frac{\pi r^2}{2} \\=\frac{\pi 3^2}{2} \\\\=14.137m^2[/tex]
Square
[tex]A=a^2=6^2=36[/tex]
[tex]36-14.137=21.863m^2[/tex]
