If ∠A and ∠B are two adjacent angles of a parallelogram. If ∠A = 70°, then ∠B = ?
A. 70°
B. 90°
C. 110°
D. 180°
Answer:C
If ∠A and ∠B are two adjacent angles of a parallelogram. If ∠A = 70°, then ∠B = ?
A. 70° B. 90° C. 110° D. 180°
Explanation: The adjacent angles of parallelogram are supplementary.