Talk to us! Your input helps us improve Ask.com for the millions of people who use us every day.

How would you rate Ask.com?

How can we make Ask.com better for you?

Please provide feedback before submitting your response.

Thanks for the feedback!

Web Results

en.wikipedia.org/wiki/Perpendicular

Therefore, in Euclidean

www.mathsisfun.com/definitions/perpendicular-lines.html

www.khanacademy.org/math/basic-geo/basic-geo-angles/basic-geo-interpreting-angles/v/parallel-and-perpendicular-lines-intro

Sal discusses how to tell if

www.khanacademy.org/math/basic-geo/basic-geo-angles/basic-geo-interpreting-angles/e/recognizing-parallel-and-perpendicular-lines

Recognize parallel and

quatr.us/math/geometry/perpendicular.htm

May 31, 2016

www.homeschoolmath.net/teaching/g/parallel_and_perpendicular.php

This lesson explains what are parallel and

www.wyzant.com/resources/lessons/math/geometry/lines_and_angles/parallel_and_perpendicular

... and

www.ixl.com/math/geometry/equations-of-parallel-and-perpendicular-lines

Fun math practice! Improve your skills with free problems in 'Equations of parallel
and

www.ixl.com/math/geometry/slopes-of-parallel-and-perpendicular-lines

Fun math practice! Improve your skills with free problems in 'Slopes of parallel
and

www.ixl.com/math/geometry/construct-a-perpendicular-line

Fun math practice! Improve your skills with free problems in 'Construct a

More Info

www.khanacademy.org

Writing equations of

www.mathopenref.com

... right angles'. A line is perpendicular to another if they meet at 90 degrees. ...
relationship. For more on this, see

www.mathopenref.com

How to determine if