00:01
I'm going to sketch number 7 and a down below.
00:03
It won't be perfect in doing this with a mouse, but we have segment a, b, c, d, which would be a separate segment because of...
00:25
And b, d, that would be the intersect in exactly two points.
00:36
I think that would be an example.
00:46
Plains s and t intersecting at a ray angle.
01:18
All right, planes s and t intersecting at a right angle.
01:36
Segment a, b is on plane s.
01:58
Oh, segment a .v is on plane s and plain t, so that means it's part of the intersection.
02:14
And c is the midpoint.
02:21
But with that, you would want tick marks from a, c, and c to be...