1. Measuring Angles

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?

CONCEPT PREVIEW Name the corresponding angles and the corresponding sides of each pair of similar triangles. (EA is parallel to CD.)

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

Which of the following pairs of angles are supplementary to each other?

Which angle is supplementary to $4°$?

Find the complement & supplement of a $45°$ angle.

Complement: ____

Supplement: ____