Texas Instruments TI-15 - Page 92

© 2000 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-15: A Guide for Teachers
85
Using pi to find circumference
Use this formula to
find the amount of
border you need to
buy if you want to put
a circular border
around a tree at a
distance of 3 meters
from the tree.
C = 2
p
r = 2 x
p
x 3
Pi
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Press Display
2
V ©
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V
3
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