Answer:
about 21.8628330588
Step-by-step explanation:
keep in mind that area of a semicircle is [tex]\frac{\pi r^{2} }{2}[/tex] and that in this example the
side = diameter = 2r.
[tex]s^{2} - \frac{\pi r^{2} }{2}= \\6^{2} - \frac{\pi 3^{2} }{2} =\\36 - \frac{9\pi }{2} =\\36 - 14.1371669412= 21.8628330588[/tex]
hope this helps :)
