18
Pi
g
(multi-tap key)
p
= 3.141592653590 for calculations.
p
= 3.141592654 for display.
Example
³
Problem
What is the area of a circle if the radius is 12 cm?
Reminder: A =
p
×r
2
The area of the circle is 144
p
square cm. The area of the
circle is approximately 452.4 square cm when rounded to one
decimal place.
2
% a
<
p
2
V
g
<
r
g
V
12
F
<
r