А 6.3
B
15
С
Solve for each missing angle and side.
a) Solve for Angle A. Round to the nearest degree.
b) Solve for Angle B. Round to the nearest degree.
c) Solve for side AB. Round to the nearest tenth

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