Texas Instruments TI-30XS User Manual - Page 18

Example À 2 V g < n ³ Problem What is the area of a circle if the radius is 12 cm? Reminder: A = Àr2. g V 12 G 2 < n The area of the circle is 144 À square cm. The area of the circle is approximately 452.4 square cm when rounded to one decimal place. Angle menu %I %I displays the choice of two submenus that enable you to specify the angle unit modifier as degrees (º), minutes ('), seconds ("); radian (r); gradian (g), or convert units using ´DMS. You can also convert between rectangular coordinate form (R) and polar coordinate form (P). (See Rectangular to Polar for more information.) Choose an angle mode from the mode screen. You can choose from DEG (default), RAD, or GRAD. Entries are interpreted and results displayed according to the angle mode setting without needing to enter an angle unit modifier. Copyright © 2006 Texas Instruments Incorporated 18