Algebra and Up:
Question: A 16-inch pizza is cut into 6 equal slices. If 4 consecutive pieces are taken and eaten, then what is the area taken up by the remaining slices?
(Hint: Pizzas are measured by their diameters.)
Answer: 21â…“π square inches
Solution: Before any slices are eaten, the pizza takes up πr2 = 64π square inches. Since 4 out of 6 slices were eaten, that leaves 2 slices, so â…“ of the pizza is left over. That means that the area taken up by the remaining two slices is â…“ × 64π = 21â…“π square inches.
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