+0  
 
+1
89
1
avatar+92 

If a line meets two parallel lines and is perpendicular to one of them, prove that it is perpendicular to the other.

 

Answer below in the comments if you want! laugh

FreezingTNT  Sep 19, 2018
edited by FreezingTNT  Sep 19, 2018
edited by FreezingTNT  Sep 19, 2018
 #1
avatar+94100 
+1

If a line meets two parallel lines and is perpendicular to one of them, prove that it is perpendicular to the other.

 

If two parallel lines are cut by a transversal then the cointerior angles are supplementary.

(If one is x the other is 180-x)

If one is 90 then thte other is 180-90=90.

So if the transversal is perpendicular to one of the lines it must be perpendicular to the other as well.

Melody  Sep 19, 2018

3 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.