How to Find the Circumcenter of a Triangle With Coordinates : Essential Math Tips

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Finding the circumcenter of a triangle is something you can do in a wide variety of different ways, including through the careful use of some existing coordinates. Find the circumcenter of a triangle with coordinates with help from a distinguished math expert in this free video clip.

Expert: Subhah Agarwal
Filmmaker: Alexis Guerreros

Series Description: As long as you keep a few essential math tips in mind, you will not have issues moving on to bigger and more advanced concepts. Get essential math tips with help from a distinguished math expert in this free video series.

[keyshawnasouvenir]

When she said thank you for taking an intrest in math i was like its not by choice
-___-

[vannadevon]

Well, to be optimistic, I like how it appears she wrote everything backwards.

[mickyr]

The only thing clear about this was the glass you were writing on lol

[sierrasprings]

Okay it took me about 15 minutes to understand this but once I figured out that perpendicular bisectors are the slope's reciprocal and therefor we can solve for their equation my mind was blown.

[joybuenaflor]

What is going on in the background? The screaming is distracting.

[johnpaulswitzer]

I have no interest in math I just have to do this because my teachers think I need their stupid class

[NoamTene]

What you drew on the triangle are the medians not the perpendicular bisectors which usually do not go through the vertices. The intersection of the medians is the center of gravity, not the circumcenter.

The wikipedia entry for Circumscribed_circle gives a correct explanation as well as equations for finding the circumcenter.

[andreapendleton]

Perpendicular bisectors do not have to pass through the vertices of the triangle like in your picture.

[ayushpatnaik]

Drew the wrong figure. lel. The perpendicular bisectors won't necessarily pass through the vertices.  

[mazaheri.pourya]

i have no idea was it right or not? but how do you write on board in front of us and we can read text from this side?
you should write from right to left and mirror every thing ? have you done that or it is just a camera trick?

[SherinFunmes]

Guys the perpendicular bisector does not pass through the centre .... the method was correct but the diagram wasn't

[brynnziegler]

i wish she did a real example with numbers lmao. i got my math teacher always does “examples” like this and i never grasp it.

[ilhanyusuf]

What about the second “y” coordinate? Assuming we set them to eachother, you need another to make it (x, y)?

[sshannon]

The perpendicular bisectors won't necessarily pass through the vertices....math expert??

[harshsalve]

Thank you ' subhah ' it really help's me

[sudharanitekula]

You have described the process of getting an orthocentre

[lra_start]

2:06, dont think anyone that watched this vid took an interest in math lol

[abhayvarshney]

The point where all three perpendicular bisector from vertices meet is called orthocentre ?

[radmehrabdolahi]

you don't need all the three equations you math expert..

[thereturnofsushi]

Umm.
You just drew the figure for Orthocenter.