Posted by Katie on .
Geometry, Isoseles right triangle. Line segments MN and NO are ? A. parallel lines, B. opposite angles, C. perpendicular lines, D. obtuse angles. I can't see that any of these are the answer to the question. Can you help me?

Geometry, not "4th grade" 
Writeacher,
assistance needed
Please type your subject in the School Subject box. Any other words are likely to delay responses from a teacher who knows that subject well. 
4th grade 
bobpursley,
aren't they perpenducular in a right triangle?