Question

a parallelogram measures 105°. What are the measures of the other three angles in the parallelogram?

Answer 1

In plgm. All angles = 360°
Adjacent angles have sum of 180
Ang. 1+2=180=ang. 3+2
Ang 3+4=ang 1+4=180°

Ang 1=105°
Therefore ang. 2 =180-105 = 75°
Ang 3=180-75=105°
Ang 4=180-105=75°

Answer 2

Angle 1=105°
Angle 2=75°(since adjacent Angeles in parallelogram add up to 180°)
Angle 3=105°
Angle 4=75°