In the given figure AB ∥ CD, if ∠AOC = 30° and ∠OAB = 100°, then ∠OCD = ?
A. 130°
B. 150°
C. 80°
D. 100°
Answer:A
In the given figure AB ∥ CD, if ∠AOC = 30° and ∠OAB = 100°, then ∠OCD = ?
A. 130° B. 150° C. 80° D. 100°