All High School Math Resources
Example Question #1 : Parallelograms
In the parallellogram, what is the value of ?
Opposite angles are equal, and adjacent angles must sum to 180.
Therefore, we can set up an equation to solve for z:
(z – 15) + 2z = 180
3z - 15 = 180
3z = 196
z = 65
Now solve for x:
2z = x = 130°
Widener University-Main Campus, Bachelors, Accounting.
Truman State University, Bachelors, Communication.
LeTourneau University, Bachelors, Electrical Engineering. LeTourneau University, Masters, Electrical Engineering.