Texas Instruments TI15TK Teacher Guide - Page 93
Using pi to find area
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Using pi to find area Use this formula to find how much Pi of the lawn would be covered by a sprinkler with a radius of 12 meters. © A = pr2 = p x 122 12 m Press © V 12 ¨ 2 ® Ÿ Display S 144ß 452Ù3893421 © 2000 TEXAS INSTRUMENTS INCORPORATED TI-15: A Guide for Teachers 86
© 2000 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-15: A Guide for Teachers
86
Using pi to find area
Use this formula to find how much
of the lawn would be covered by a
sprinkler with a radius of 12 meters.
A =
p
r
2 =
p
x 12
2
Pi
©
Press
Display
©
V
ßÝ
12
¨
2
ßÝÏÐÉÐ
®
ßÝÏÐÉÐÚS 144ß
Ÿ
452Ù3893421
12 m