Question

solve the problem given bellow

Answer 1

angle aoc =130°÷2=65°
angle aod +angle aod=180°
angle aod + 65°=180°
angle aod=180°-65°
angle aod=115°

Answer 2

Angle AOD=Angle BOC (Vertical opp angle) let these angles =x. <AOC+<BOD =130 (GIVEN)...... X+X+<AOC+<BOD=360,2X =230, X=115, <AOD =115