Texas Instruments TI15TK Teacher Guide - Page 92
Using pi to find circumference
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Using pi to find circumference Use this formula to Pi 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 = 2pr = 2 x p x 3 Press 2 V © Display 2Ýß V 3 ® Ÿ 2ÝßÝ3Ú Ôß 18Ù84955592 © 2000 TEXAS INSTRUMENTS INCORPORATED TI-15: A Guide for Teachers 85
© 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
©
Press
Display
2
V
©
2Ýß
V
3
®
2ÝßÝ3Ú
Ôß
Ÿ
18Ù84955592