Two adjacent angles of a parallelogram are in the ratio of 2:3. What is their average size?
A. 30.
B. 40.
C. 45.
D. 90.
E. 180.
Two adjacent angles of a parallelogram are in the ratio of 2:3. What is their average size?
A. 30.
B. 40.
C. 45.
D. 90.
E. 180.