Two intersecting lines create four angles with the same vertex, labeled A, B, C, and D. Angle B is adjacent to ZA and ZC. Find m LA if m LC = 75°. (1 point)
Since angle C is 75° and angle B is adjacent to angle C, angle B is also 75°. Since angles C and B are adjacent to angle A, the sum of angles C and B must equal 180°, so angle A is 180° - 75° - 75° = 30°. Therefore, m LA = 30°.
