Parallel Skew and Perpendicular

What does perpendicular mean?

• Lines cross each other

• Lines cross at 90 degrees

• Lines never touch

• Lines are skew

Are lines j and k skew?

• yes

• no

Two lines that are not coplanar are called _____ lines

• Parallel

• Perpendicular

• Intersecting

• Skew

Name a line perpendicular to AB

• EH

• DC

• AE

• FG