20....or maybe 18
Yes. They're in the plane defined by the two intersecting lines.
Eight.
Vertical Angles
vertical angles
Vertical angles
Yes. They're in the plane defined by the two intersecting lines.
Eight.
vertical
No. The non-vertical angles need not be related to one another in any way.
Vertical
IN
vertical angles
Vertical Angles
False. The angles can be formed by two skew lines intersecting a third line.
Vertical angles
equal vertical angles
yes