Explore: Compare the measures of
,
.
Plan: To compare the angle measures use the properties and theorems of real numbers.
\Solve: Compare
.
Since
is an exterior angle. By the exterior angle theorem the measure of
is
greater than the measure of either of its corresponding remote interior angles.
\ So,
.
Compare
.
Again, by the exterior angle theorem the measure of
is
greater than the measure of either of its corresponding remote interior angles.
\ So,
.
Check:
is greater than the measures of
. Thus,
is the greastest measure.