Checkout Counter
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Press PLAY on the title screen to begin.
Measure: Measure the red line (diameter) to the nearest inch.
Use π = 3.14. Use the Formula Menu and calculator.
Formula Menu
Apple Pie
Price = (3.14 × r²) ÷ 4
r = diameter ÷ 2
Cherry Pie
Price = (3.14 × r²) ÷ 3
r = diameter ÷ 2
Pecan Pie
Price = (2 × 3.14 × r) ÷ 2
This simplifies to Price = 3.14 × r
Lemon Meringue
Price = 2 × 3.14 × r
That’s the full circumference
Calculator
