Answer:
∠AOB = ∠COD = 63°
∠BOD = ∠AOC = 117°
Explanation:
You want the measures of all the angles in the figure where lines AD and BC cross at O, with angle COD shown as 63°.
Opposite angles
Opposite angles, also called vertical angles, are congruent. This means ...
∠AOB = ∠COD = 63°
∠BOD = ∠AOC
Linear pair
A linear pair of angles is supplementary. This means the angles in this figure that are not 63° are 180° -63° = 117°.
∠BOD = ∠AOC = 117°
<95141404393>