Explore Vertical Angles and Their Properties

Front

What angle pair is pictured?

Back

Vertical Angles

Front

Solve for b. Hint: Straight angle = 180 degrees

Back

39

Front

If the measure of ∠2 is 83°, what is the measure of ∠1?

Back

83°

Front

Vertical angles are always

Back

congruent (equal measures)

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect

Front

If the measure of ∠4 is 110°, what is the measure of ∠2?

Back

70°

Front

If the measure of ∠3 is 110°, what is the measure of ∠4?

Back

110°

Front

Triangle NOE is an isosceles triangle (2 equal sides). What is the length of side OE?

Back

5 units

Front

Triangle NOE is an isosceles triangle (2 equal sides). If you reflect Triangle NOE across side ON, what is the length of side OM?

Back

5 units

Front

The measure of angle NOE is 30 degrees. If you reflect triangle NOE across side NO, what is the measure of angle MON?

Back

30 degrees