Operation Manual

Chapter 17: Activities 320

Procedure

1. Press  } B to select B:Solver from the MATH menu. Either the equation editor or the

interactive solver editor is displayed. If the interactive solver editor is displayed, press } to display

the equation editor.

2. Enter the formula as A=NB

sin(p / N)cos(p / N), and then press Í. The interactive solver editor is

displayed.

3. Enter N=4 and B=6 to find the area (A) of a square with a distance (B) from center to vertex of 6

centimeters.

4. Press } } to move the cursor onto A, and then press Äƒ \. The solution for A is displayed

on the interactive solver editor.

5. Now solve for

B for a given area with various number of sides. Enter A=200 and N=6. To find the

distance

B, move the cursor onto B, and then press ƒ \.