When two parallel lines are intersected by a transversal line, what is the relationship between angles on the same side of the transversal and inside the parallel lines called?
Consecutive interior angles
# 2選擇題
If two lines intersect, what is the relationship between the vertically opposite angles formed?
They are equal
They are adjacent
They are complementary
They are supplementary
# 3選擇題
What is the name for an angle formed by two intersecting lines that are opposite to each other?
Adjacent angles
Complementary angles
Vertically opposite angles
Supplementary angles
# 4真/假
An obtuse angle is an angle that measures less than .