How to Construct an Angle and a Perpendicular Bisector

Loading...

Sign in or sign up now!
Alert icon
Upgrade to the latest Flash Player for improved playback performance. Upgrade now or more info.
13,841
Loading...
Alert icon
Sign in or sign up now!
Alert icon

Uploaded by on Jun 7, 2009

Using only a compass and a straight edge, one can bisect an angle and construct a perpendicular bisector of a line segment. I have used these ideas in constructing my house. I also show how to circumscribe a triangle and how to inscribe a triangle.

  • likes, 1 dislikes

Link to this comment:

Share to:

Uploader Comments (minkusbc)

  • My question is,

    How is constructing a perpendicular bisector similar to constructing an angle bisector? How is it different?

  • @45darkrai Good observation, since a straight line is 180 degrees, if you bisect it you get two 90 degree angles, hence, a perpendicular!

  • Oh and another question: if you have to construct an obtuse angle bisector, would the steps be any different?

  • @lautnerandpatt NO, same steps.

  • Thanks so much! I agree math teachers DO go to fast. This really helped me but I am still a bit confused because I was trying to make a 142 degree angle but it came out 152 degrees. Any advice on what I did wrong?

  • @lautnerandpatt Was this a 142 degree angle with a compass and straightedge, or with a protractor?

Top Comments

  • @GlazeBoiX Because most student complaints about their teachers are that they go too fast. I now have software that allows me to have a "virtual" compass, so I maybe able to use that instead. As to neatness, well when you use this to build houses as I have, accuracy and neatness is important.

  • u are the best!!!! :D thanks!!!!

see all

All Comments (40)

Sign In or Sign Up now to post a comment!
  • Nice... SAS spellz half my name :)

  • hm arc is bent

    giant ass protactor loolz

  • THank you so much!!! You're a good teacher

  • @SuperPokemonfan22 john you just replyed on this and i needed help on hmwrk so to be nice i replyed! your just jelaous of my smarticles> :P jazz also looked on youtube for help!!!!

  • @SuperPokemonfan22 john you just replyed on this and i needed help on hmwrk so to be nice i replyed! your just jelaous of my smarticles> :P jazz also looked on youtube for help!!!!

  • @SuperPokemonfan22 john you just replyed on this and i needed help on hmwrk so to be nice i replyed! your just jelaous of my smarticles> :P

  • @HotPink2257 sandra why would u even comment on this -.-

Loading...

Alert icon
0 / 00Unsaved Playlist Return to active list
    1. Your queue is empty. Add videos to your queue using this button:
      or sign in to load a different list.
    Loading...Loading...Saving...
    • Clear all videos from this list
    • Learn more