19. Two angles form a linear pair. One angle is 80°, what is the measure of the other angle?
A. 40°
B. 60°
C. 100°
D. 120°
20. When a transversal passes 3 parallel lines, how many angles can be formed?
A. 4
B. 8
C. 10
D. 12
A. 40°
B. 60°
C. 100°
D. 120°
20. When a transversal passes 3 parallel lines, how many angles can be formed?
A. 4
B. 8
C. 10
D. 12
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Answer:
19.)C.100°
19.) 80°
+ 100°
________
180°