The diameter of the larger circle is 20.4 cm. The diameter of the smaller circle is 10.8 cm.

What is the best approximation for the area of the shaded region?

Use 3.14 to approximate pi.

72.3 cm²
235.1 cm²
289.4 cm²
326.7 cm²

Small circle inside big circle, shaded region outside smaller circle and inside larger circle

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Area of circle=[tex] \pi r^{2} [/tex]
Area of shaded=Area of big circle-Area of small circle
                         =[tex] (3.14*(\frac{20.4}{2})^{2} )-(3.14*(\frac{10.8}{2})^{2} )[/tex]
                         =[tex]235.1 cm^{2} [/tex]