The video tutorial covers the concepts of complementary and supplementary angles, explaining how they add up to 90 and 180 degrees, respectively. It introduces radians, explaining their relation to circles and how they are used in angle calculations. The tutorial includes solving problems involving radians and angles, and demonstrates how to calculate supplements using radians.

What are the definitions of complementary angles?

Explain the relationship between degrees and radians.

What is the formula for finding the supplement of an angle?

How do you convert an angle from radians to degrees?

If an angle measures 1 radian, how would you express it in terms of pi?