Question

If angle 1 measures 146°, what is the sum of angles 2 and 4?

Answer 1

68

Explanation:

Angle 1 is 146

Angle 2 is 180-146 (lines are 180 degrees)

180-146 = 34

Angle 2 and Angle 4 are congruent (equal) because they are vertical angles.

34 + 34 = 68

Answer 2

68

Explanation:

1 and 2 are supplementary, making the sum of the measures = 180. 180-146 = 34. 2 is a vertical angle to 4. 4=34. 34+34=68