The perpendicular bisectors of its sides are SV, TV, and UV. They meet at a single point V. In other words, V is the circumcenter of triangle PQR. Suppose UV=48, PS=62, and RV=80. Find PU, PR, and QV

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality