TI-83 Plus GeoMaster™ Application Page 61
13. Select the
Parallel?
tool from the
MISC
menu.
14. Move the cursor to the first line, and then press
¯
to
select it.
15. Move the cursor to the second line, and then press
¯
to
select it. False is displayed, because the lines are no longer
parallel. Notice then, if the measurements of the alternate
exterior angles are not equal, the lines are no longer parallel.
Before you
moved the line,
the
measurements of
the angles were
equal.
As you move the line,
the angle
measurements are
updated – and are no
longer equal!
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