If is a parallelogram that is reflected in the point and , find .
Step 1: Determine .
Opposite angles of parallelograms are equal in measure, so
The sum of a parallelogram's angle measures is . So, we
can find by subtracting and
from and dividing the result by 2.
Step 2: Determine .
A reflection transforms a figure into a congruent figure with
equal angle measures. Therefore,