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A pizzeria sells a round pizza with a diameter of 16 inches.


Another pizzeria sells a large square pizza with a side length of 15 inches


Which has more crust along the outside edge of the pizza, the round pizza or the square pizza?

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Answer:

Square pizza

Step-by-step explanation:

d = Diameter of round pizza = 16 inches

a = Side length of square = 15 inches

More crust means the edge length of the pizza is greater. Edge length is given by the perimeter.

Circumference or perimeter of the round pizza

[tex]C=\pi d\\\Rightarrow C=\pi\times 16\\\Rightarrow C=50.27\ \text{inches}[/tex]

Perimeter of the square is

[tex]P=4a\\\Rightarrow P=4\times 15\\\Rightarrow P=60\ \text{inches}[/tex]

So, the square pizza has more crust compared to the round pizza.

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