Thursday

April 24, 2014

April 24, 2014

Posted by **Camile** on Tuesday, May 17, 2011 at 8:49pm.

Lines AB and LM are each perpendicular to plane P. Are AB and LM coplanar?

Plan P is perpendicular to AB at B. Plane Q intersects AB at P. Can Q be perpendicular to AB?

- Math -
**Reiny**, Tuesday, May 17, 2011 at 9:02pmfirst part:

Suppose you are standing a ruler on the floor, the ruler is RS, and it is perpendicular to the floor.

If T is not along this ruler, could RT be parallel to ruler RS ??? (NO)

2nd:

think of a table with 4 legs.

All the legs would be perpendicular to the table and parallel to each other. Could you imagine a plane containing two of the legs? (YES)

I don't follow the wording of the 3rd question

- Math -
**Camile**, Tuesday, May 17, 2011 at 9:04pmI wrote the question wrong. its supposed to be

Plan P is perpendicular to AB at B. Plane Q intersects AB at B. Can Q be perpendicular to AB?

- Math -
**Reiny**, Tuesday, May 17, 2011 at 9:12pmdepends on your definition of "intersects"

Imagine a wall and the floor, the wall being Q and the floor being P. They would be perpendicular.

Along the wall draw a line AB, with B on the floor and AB perpendicular with the floor.

Does the wall "intersect" the line AB at B, that is, is B on he wall?

**Related Questions**

Geometry - a line RS is perpendicular to plane p at R. If T is a second point ...

Geometry - I dont get these questions Is there exactly one plane containing two ...

math - Given the plane 2x-3y+7z=4, a) Find the equation for the line ...

Math - Given the plane 2x-3y+7z=4, find the equation for the line perpendicular ...

Math - Line m is perpendicular to plane A. how many planes can contain line m ...

Math - Point A lies in plane B. How many lines can be drawn perpendicular to ...

Math please help?!?! - Point A lies in plane B. How many lines can be drawn ...

math:quick help - Let Fn be the nth number in the Fibonacci Sequence. Consider ...

math - parallel and perpendicular lines Determine an equation of each of the ...

High School Geometry - I am have a hard time understanding how A and B can be No...