Square or Round – which pizza should I buy?

Warm up for π day with this updated activity!

Subway has great Flatizzas but Sbarro's pizzas are good too.


If that slice from Sbarro is from an 18-inch pizza cut into eight pieces, which deal is better when comparing the area of the pizzas and their cost? (Note: We're not considering the pizza's volume. We're only dealing with its surface area.)  How does the area of a square pizza compare to the area of a circular pizza?

Technology: As students grapple with comparing the area of a square and the area of a circle with the same diameter/side length have them explore this Geogebratube app on area relations.

The activity: pizza-deals2023.pdf

For members we have an editable Word docx and solutions.

pizza-deals2023.docx    pizza-deals-solutions2023.pdf

CCSS:  4.MD.3, 6.G.1, 6.RP.3, 7.G.4


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