Introduction to vertical angles | Angles and intersecting lines | Geometry | Khan Academy

The Vertical Line Test

Vertical And Horizontal Line Distance

When you draw cuts, you have to keep in mind your vanishing points, even if the cut edges go in a completely different direction. A bevel cut is easy: just draw the profile line and send guides to the vanishing point. For a cut at a right angle, you can still send points to the vanishing point, but you also need to find the end point using a vertical line. And what if it’s not a right-angle cut? You still send lines from all points to the vanishing point, but now you drop verticals from the inne