Parallel Lines & Angles
Use angle relationships to find the value of x.
Practice
01
Find x.
x = 80°
Vertical angles are equal.
02
Find x.
x = 30°
The angle opposite x is also x. Along the straight line: 3x + x + 2x = 180°, so 6x = 180° and x = 30°.
Use angle relationships to find the value of x.