Monday, December 6, 2010

The Area of a Triangle

Every triangle is half of a parallelogram. We know the formula to find the area of a parallelogram is base times height. So the formula of a triangle is half of the area of a parallelogram . The formula of the area of a triangle is base times height divided by two.

The height of a triangle has a perpendicular line from the base to the opposite angle.












Here is a link for help on finding the area of a triangle.

22 comments:

Jason 8-73 said...

I'm sorry my scribe post didn't have a video. It didn't work when i tried putting one so here is the video i was going to put http://www.youtube.com/watch?v=xz6gBA0M9FY .

Kamille817 said...

Hey Jason! Good job on your scribe-post. It would be also better if you change colors and change the font size. Here is another picture that you could put:
http://1.bp.blogspot.com/_Ox-YAvoPntU/SKgifFz-EBI/AAAAAAAAANY/Xa7O3s0x94Q/s400/triangle-2-s.gif

Here a site that could help to:
http://www.mathexpression.com/area-of-a-triangle.html

Thanks!

serena 814 said...

Hi Jason, your scribe post is awesome! The picture you added was easy to understand, it even showed us that the height is perpendicular to the base. I thought the video was interesting, but the link didn't help me much. Here is a better link that I think you should add.

http://www.aaamath.com/geo78-area-triangle.html

I also found two interesting video that I think you should add.
http://www.youtube.com/watch?v=CTQ54NpJqcU

http://www.youtube.com/watch?v=t5kn9kbU1dk

irena814 said...

Hi Jason, great scribe post! Your explanation was very easy to understand and I liked how you added a picture with it. I think you should add some more colors to your post, to make it even better! Here's a really interesting video I found.
http://www.mathplayground.com/howto_area_triangle.html

Here's a really interesting link I found, on how to find the area of a triangle.

http://www.ixl.com/math/practice/grade-7-area-of-triangles-and-trapezoids

ronalen 8-14 said...

hey jason. great job on your post it really describes how to find the area of a triangle. i think that you should change the colours of some of the words so that they stand out a lot better. other then that you did a great job :)

jamodin 816 said...

Hey Jason. Nice scribe but you didn't put a video. It is okay because you put it in your comment. Here is another video for your help.
http://www.youtube.com/watch?v=9WnmYezOdRk

kristan817 said...

Hey jason nice scribe and good job keep up the good work. :)

Cindy814 said...

Jason, I liked your picture, it shows clearly how to find the height of the triangle. However, your post can be improved if you changed the size and color of your font. Other than that, your post was great!

aaron873 said...

hi jason i really like your scribepost. it really shows how well organized you did it. You picture is great. it would also be better if you can put color and make the font bigger. either then that your all good thanks and good job :)

kassey814 said...

great job jason i wasn't here but i understood everything thank for what we did in class the other day.

Anonymous said...

Hi Jason, nice scribe-post. I like the picture because it shows where the height of the parallelogram. I think you should change the color of the font.

beverly814 said...

Hey Jason, nice job on your scribe post. I liked how you put a really good picture showing you how to find the area of a triangle. I think that you should have changed the color or the font. Good Job Jason. :)

madeline816 said...

Hi Jason! Good job on your scribe, but it could have been better if you made the font a different color,and you also could have put a video here is a video I found:http://www.youtube.com/watch?v=xz6gBA0M9FY

hannah816 said...
This comment has been removed by the author.
hannah816 said...

Hi Jason! Great scribe post. I like how the image shows the perpendicular height and the base. Try to make your font size bigger next time though! Good Job! Here is another link that may help to find the area of a triangle ; http://www.onlinemathlearning.com/area-triangles.html

abby873 said...

Heey jason. GREAT job on your scribepost. it really explained alot. but you coulve made your font size a little bigger so it could stand out for the reader. & its okay that you forgot about the video theirs still other times (: but nother then that great job on your scribe-post.

randolph814 said...

Nice Job JASON!!!!!!! :-)

Danilyn8-73 said...

Hey Jayson, thank you for putting the formula in. Your picture is a pretty good diagram but here is another diagram: http://image.wistatutor.com/content/feed/u435/triangle-area.gif

levi711 said...

nice post jason

Sarah7-11 said...

Hey Jason good job on your scribe post. Although it would have been better if you changed the color of the font, and font size.
I really liked your picture, but here's a link to a picture that might work:http://www.mathwarehouse.com/geometry/triangles/area/index.html
Here's another link to a video: http://www.youtube.com/watch?v=xz6gBA0M9FY
Good job Jason :)

karl817 said...

nice scribe post jason but you should put a video anyways good job

Lance873 said...

hey jason great post i like the pictures and i think you should add a video