In a plane, if two lines are perpendicular to the same line, then they are _____ to each other.

parallel
skew
perpendicular
collinear

Question

In a plane, if two lines are perpendicular to the same line, then they are _____ to each other.
 
   parallel 
 skew 
 perpendicular 
 collinear

anonymous · Answer

Parallel

anonymous · Answer

In a plane, line b is perpendicular to line f, line f is perpendicular to line g, and line h is parallel to line f. Which of the following must be true?
 
   hg 
 g || f 
 b || h 
 fh

anonymous · Answer

What is the measure of an exterior angle of a regular nonagon?
 
   40° 
 360° 
 140° 
 180°

anonymous · Answer

for ex terior angle of regular polygon use 360/n
so here 360/9 =40

anonymous · Answer

What is the sum of the measures of the angles of a 25-gon?
 
   2,500º 
 4,140º 
 360º 
 25º