Two Angles are Complementary when they add up to 90 degrees (a RightAngle). But the angles don't have to be together.
Supplementary Angles:
Two Angles are Supplementary when they add up to 180 degrees. But the angles don't have to be together.
Vertically Opposite Angles:
When 2 lines intersect, they make vertical angles. Vertically Opposite Angles ( vertical angles ) are the angles opposite each other when two lines cross. They are always equal.
Full Rotation:
A full rotation is 360 degrees. It means turning around until you point in the same direction again.
Practice Time!
Identify each pair of angles as vertical, supplementary, complementary. Use your notes!
Textbook Time
Section 2C
Q1 c Q2 c Q3 c
Textbook Time
Section 2C
Q5 a, b, c, d, e, f, g Q6 alternate Q8 part? Q9 a, b, d, e Q 12 Q10 a, b