Find each angle measure. SEE EXAMPLE 3
19. m21
20. m22
2.
123°
1
SOWAT

Step-by-step explanation:

as , sum of both the angles on the same side of transversal is 180°

so,

Angle 2 + angle 5 = 180°

123° + angle 2 = 180°

Angle 2 = 180° - 123° = 57°

angle 2 = 57°

and

angle 1 = 123° ( Alternate Interior Angle )

hope this answer helps you dear...take care!