## Wednesday, November 18, 2009

### Bisect & Perpendicular Bisector

Bisect
Bi means two
Sect means to cut
Bisect means to cut in two

Perpendicular Bisector

A line that divides another line segments in half and has right angles to it.

1st way to make a Perpendicular Bisector:

Fold the paper, so point A is on point B. Draw a line in the crease that you made. Label it C,D. Where they intersect, label it P.

2nd way to make
a Perpendicular Bisector:

You have to use a Right Triangle.

Step 1,
Draw a line segment on a piece of paper with a right triangle.

Step 2,
Use the right triangle to find the half mark of the line segment.

Step 3,
Draw another line segment on the half mark, intersecting with the original

Step 4,
Make sure that it is 90 degrees. (use a protractor to check)

3rd way to make a Perpendicular Bisector:

Use a Compass.

Step 1,
Make an arc from point A that is greater than half way.

Step 2,
Make an equal sized arc from point B.

Step 3,
Connect the arc intersection with a straight line.

1. Excellent post Karl! Your post was very neat. It really helped me understood perpendicular bisectors. Next time try adding a picture and a link!

2. Very nice post Karl!Your post was easy to understand and neat.It help me alot on how to make a perpendicular bisector.But it could have been better if you added some pictures and a link.Overall it was still a nice post.

3. Great scribe post, Karl! Your post is very organized and neat. It helped me understood the perpendicular bisector. Next time, add a picture and a link! Overall, I liked it!

4. Nice post Karl! You should've put a link and made a the letters a little bit bigger. Your post was easy to understand and it was really neat!

5. Great post Karl!
i really liked your video it was great it really helped me. And i liked how you coloued the important words different from the rest but there is no link or picture and an idea for a picture would be: you could make a picture for each perpindicular bisector. but your words were a bit to small. Also if someone (that diden't know anything about perpindicular bisectors)read your scribe post they would learn everything they needed to know about perpindicular bisectors also make sure that all the printing is the same size unless it is the title. But overall it was a great scribe post Karl!

6. I like your post karl its helpful that you put everything on there and your video was awesome too it helped me a lot. Next time though is you should add a picture and a link to help other people just in case they don't understand the video that much but everything else was great. GOOD JOB!

7. Great post Karl! I like how you changed the colors of the titles because it made it easier for me to read. But I think you were supposed to put a picture in and the size of the font made the information harder to read.

8. Good job Karl!i like the video and i like how you changed the colors of the title.but you could have put a picture and a link.but everything else was great

9. Nice post Karl. I liked how you used different colors for the fonts but next time make the fonts a little bigger. Other than that great job.

10. Great post Karl! I liked how you used different colours for the titles and I also liked how you changed the sizes too but next time try adding a picture.

11. You did a great job. You could change the font and the colour of some words.

12. Great post Karl. i like how you change the color and the size of the font of the tittle.

13. Nic Post Karl!! You really explained how to create a perpendicular bisector. Next time I think you should make the small text a little bit bigger. GREAT JOB!!!

14. Great post Karl, I like how you explained the words! But maybe next time you could add a picture, besides that good job!

15. Nice post Karl! I like how you explained the different ways to make the perpendicular bisectors. Next time you can improve it by adding a picture and a link. Otherwise great post!

16. I really liked the post Karl! I liked the video. But you could of made the font bigger in the beginning. And you also could of added a picture too !

17. Great post Karl! i like how it was easy to understand. mabe next time you could make all the size of the letters the same. other than that great job.

18. good job Karl. everything was good. but next time, you might want to put a picture.

19. Great post, Karl. I like how you changed the size and the colour of the titles so they would stand out. You should try putting a picture next time.

20. Nice post, Karl! It was very neat. I liked how you change the font color. It really stands out. Next time, try to find a link and also you might as well make the font bigger, otherwise, people can't really see. Great job!

21. Amazing Post Karl!! I loved everything how you put a video. But next time, try to make the font bigger near the end. Everything else was amazing.

22. Great job Karl. It was very easy to understand what you were trying to say.But next time put a link and a picture it would've been a lot more helpful.

23. Nice job Karl i like the video,And also how you showed how to make a perpendicular bisector step by step.

24. Nice Stuff. Easy to follow too.

25. Nice Post Karl. I love how you colored the titles.Next time add apicture or a link.

26. Great post Karl, next time add a picture