1. Measuring Angles

Which of the following best describes supplementary angles?

If the measure of an angle is $39°$, what is the measure of its complementary angle?

Which of the following pairs of angles is supplementary?

If an angle measures $35°$, which angle is complementary to it?

If angle $b$ measures $60°$, what is the measure of the angle that is complementary to angle $b$?

If the measure of one angle is $84°$, what is the measure of its complementary angle?

Which of the following pairs of angles are supplementary angles?

If an angle measures $1°$, which of the following angles is supplementary to it?

If one angle measures $3°$, which of the following angles is complementary to it?

Which type of angle has a measure greater than $90°$ and less than $180°$?

If an angle measures $1°$, which of the following angles is complementary to it?

Which angle is complementary to $4°$?

In Exercises 1–8, use the given vectors to find v⋅w and v⋅v. v = -6i - 5j, w = -10i - 8j