If two angles have equal measurements, then they are

If the sum of two angles is 90°, then they are called

If the sum of two adjacent angles is 180°, then they are called

If two angles are vertical angles, then they are

A linear pair is ________ angles whose sum is ________.

Perpendicular lines are ____________ lines that form _______ angles.

Parallel lines are lines that do not intersect.

What is the measure of ∠ A if it is complementary to ∠ B that has a measure of 55°?

Which is the supplementary angle of angle X if 𝑚∠ X= 80°?

In the given figure, there are two intersecting lines. If 𝑚∠1 = 130°, then what is 𝑚∠2?

If ∠ P and ∠ Q form a linear pair and 𝑚∠ P=𝑚∠ Q, what is the measure of 𝑚∠ P?

Which of the following correctly completes the statement below?

If two lines intersect, then __________________.