Vertical, Adjacent, & Corresponding Angles

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

Name a pair of vertical angles in the figure.

Back

∠1 and ∠4.

Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex but do not overlap.

Front

Name an angle that is adjacent to angle 2.

Back

∠1.

Front

What are corresponding angles?

Back

Corresponding angles are angles that are in the same position on two parallel lines in relation to a transversal.

Front

What relationship exists between angles 2 and 3?

Back

Vertical angles.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

Find the missing angle. Find x if angle 1 is 160°.

Back

x = 20°.

Front

What relationship exists between angles 1 and 5?

Back

Corresponding angles.

Front

What is the sum of angles on a straight line?

Back

The sum of angles on a straight line is 180 degrees.