CircleLab - Gaudeamus HS - Victoria

Knowing that the radius of the semicircle is [math]3\sqrt{2}[/math] cm, find the area of the large semicircle.

4[math]\pi[/math][math]cm^2[/math] 16[math]\pi[/math][math]cm^2[/math] 9[math]\pi[/math] [math]cm^2[/math]

Find the area of the yellow shaded semicircle.

[math]\frac{1}{2}\pi cm^2[/math] [math]\frac{9}{4}\pi cm^2[/math] [math]9\pi cm^2[/math]

Find the total area of the yellow region.

[math]4\sqrt{2}\pi cm^2[/math] [math]\frac{9}{2}\pi cm^2[/math] [math]16\pi cm^2[/math]

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