When a circular pizza is cut into six slices using diameters, the total length of the cuts is 18 cm. What is the area of the pizza in square centimeters?
If a pizza is cut in six slices by diameters, that means three diameters were cut. If the total length were 18 cm, each diameter is 18/3=6 cm.
pi*r^2=pi*(6/2)^2=pi*3^2=9pi is the area of the pizza.
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