Explanation
Area of the triangle:
[tex]\frac{10cm*6cm}{2}=30cm^2[/tex]
Area of the Semicircle:
[tex]\frac{\pi *6^2\text{ }}{2}=\frac{36\pi}{2}=18\pi cm^2[/tex]
Area of the composite figure:
[tex]Area=(30+18\pi)cm^2[/tex][tex]Area\approx(30+56.5487)cm^2[/tex][tex]Area\approx86.5487cm^2[/tex]
