R RozaRose New member Oct 27, 2010 #1 Given: (line)AB is perpendicular to (line) BC angle 7 (line) BC i perpendicular to (line) CD angle 8 Prove: angle 7= angle 8 Plan for proof: Show that angle 7 and angle 8 are both right angles.
Given: (line)AB is perpendicular to (line) BC angle 7 (line) BC i perpendicular to (line) CD angle 8 Prove: angle 7= angle 8 Plan for proof: Show that angle 7 and angle 8 are both right angles.
