Choose an equation for the relationship between the measures of the segments, angles, and arcs.

Answer: [tex]\overline{PQ}=\overline{PR}[/tex]
Step-by-step explanation:
Tangent :- A line that touches a curve or circle at a point but if extended does not cross it at that point.
From the given picture, it can be seen that [tex]\overline{PR}\text{ and }\overline{PQ}[/tex] are two tangents on circle from an external point P .
We know that the length of any two tangents drawn from any external point to the circle are congruent.
Therefore, the equation for the relationship between the measures of the segments will be:-
[tex]\Rightarrow\overline{PQ}=\overline{PR}[/tex]