Thursday

August 21, 2014

August 21, 2014

Posted by **nicole 4th grade** on Sunday, February 24, 2013 at 7:53pm.

- math -
**bobpursley**, Sunday, February 24, 2013 at 8:03pmthree separate lines can be perpendicular, if you are considering three dimensional space, like on your table. One pencil laying on the table, a second pencil on the table perpendicular to the first, and a third pencil pointing straight up (not laying on the table, as you are holding it upwards.

So if you consider three lines in the same plane, as laying on your table, two of them can be perpendicular, but it is impossible to put a third pencil on the table perpendicular to both of the first two.

- math -
**Ms. Sue**, Sunday, February 24, 2013 at 8:04pmThese are parallel lines:

||||||||||||

These are two perpendicular lines:

+

Do you see why we can only have one pair of perpendicular lines?

- math -
**nicole 4th grade**, Sunday, February 24, 2013 at 8:31pmThank You very much

- math -
**Ms. Sue**, Sunday, February 24, 2013 at 8:35pmYou're very welcome.

**Related Questions**

geometry - Martin drew a pair of perpendicular lines and a pair of parallel ...

math needed by 12midnight - How can you determine if two lines are ...

Algebra 1 Answer Check (Reiny or Kuai) - Are my answers correct? Identify which ...

Algebra 1 Answer Check (Reiny) - Identify which lines are parallel. 1. y = 6; y...

algebra need by 10p cst - How can you determine if two lines are perpendicular? ...

Math - Are these correct with the lines y=0.15x+0.79 0.11x-y=-0.85 The line ...

math - Find the slope of the lines that are (a) parallel lines (b) perpendicular...

math - Find the slope of the lines that are (a) parallel lines (b) perpendicular...

Plz Check My Geometry - Out of 30 questions these few I struggled with. I put ...

Plz Check My Geometry - Out of 30 questions these few I struggled with. I put ...