Friday, December 16, 2011

Vertically Opposite Angles

Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)

1 comment:

  1. a pair of angles is said to be vertical (also opposite and vertically opposite, which is abbreviated as vert. opp. ∠s[1]) if the angles are formed from two intersecting lines and the angles are not adjacent.