a square pizza measuring 8 inches by 8 inches that costs $10 or a round pizza with a 9 inch diameter that also cost $10

http://www.jiskha.com/display.cgi?id=1344117141

http://www.jiskha.com/display.cgi?id=1359778750

To determine which pizza offers a better value for the money, you can compare the areas of the square pizza and the round pizza.

The area of a square can be calculated by multiplying the length of one of its sides by itself. In this case, the square pizza measures 8 inches by 8 inches, so the area is 8 inches * 8 inches = 64 square inches.

The area of a circle can be calculated using the formula A = π * r^2, where A is the area and r is the radius. In this case, the round pizza has a diameter of 9 inches, so the radius is 9 inches / 2 = 4.5 inches. Plugging this value into the formula, we get A = 3.14 * 4.5 inches^2 = 63.585 square inches.

Comparing the calculated areas, the square pizza has an area of 64 square inches, while the round pizza has an area of 63.585 square inches.

Since both pizzas cost the same ($10), the square pizza offers better value for the money as it has a slightly larger area.

However, keep in mind that the difference in area is minimal, so you should also consider other factors such as personal preference (shape, crust, toppings, etc.) when making your decision.