Beatriz notices that two angles in $ΔPQR$, shown at right, have the same measure.

1. Based on this information, what statement can you make about the relationship between $\overline{QP}$ and $\overline{QR}$ ?

   Hint (a):

   The base angles have equal measure. What kind of triangle is this?

   Answer (a):

   The stated sides must have equal length.

2. If $QP = 5$ mm, what is the length of $\overline{PR}$ ?

   Hint (b):

   Calculate the measure of the missing angle.
   
   Can you use the Law of Sines to find your solution?

   Answer (b):

   $\approx6.69$ mm