Texas Instruments TI-89 Manual Book page 72

8 Determine the possible areas that can be enclosed with the
fencing material.
1. Enter =A2 p B2 in cell C2.
2. Copy cell C2 and paste it to C3:C7. Your spreadsheet
should look like this:
Notice that the maximum area for the lengths that we determined
2
(225 m ) occurs when the length of the area equals its width.
The maximum area to be enclosed would be shaped like a
square. What happens if you change cell A1 to 45 m? What
happens if you pick a different step size in the sequence?
TI-89 / TI-92 Plus / Voyage™ 200 PLT CellSheet™ App Page 72