Question

no need for explanation

Answer 1

Explanation:

iii) ∠AOE + ∠DOE + ∠DOB = 180 {Straight line angles}

67 + ∠DOE + 100 = 180

∠DOE = 180 - 167

∠DOE = 13°

ii) ∠BOC = ∠AOD {Vertically opposite angles}

∠BOC = ∠AOE + ∠DOE

= 67 + 13

∠BOC = 80°

i) ∠AOC = ∠BOD

∠AOC = 100°