Area of a Triangle in Trigonometry - Formulas, Examples & Proofs - [2-20-13]

[simpleman]

This video is a GREAT follow up to your proof on the Law of Cosines video.
I spent 6 days working on that proof. I learned so much, but I also knew I need to
figure all the stuff in this video. I'm so glad you put this together, because my brain is very tired & I just want to celebrate finally understanding the Law of Cosine proof.
Thank You very much.
edit: the reason it took me so long, was I did not use the foil method. I solved inside the parentheses before squaring. Which allowed me to see that the oblique triangle was being made into two right triangles.

[shourovshil]

Great teacher I have ever seen
Thank you sir
We love from Bangladesh 🇧🇩

[karimaakriche]

You are a Star you covered everything it's really helpful from your video I can understand all about area of triangle

[dancinwithshepa]

really enjoying your lessons.
very easy to understand things that never interested me in school.

[ranujain]

The clearity is soo nice like no doubtt

[krislegends]

About the first example, I am confused. Shouldn't height be 32*sin(72), with 72 coming from 180-108?

[andable]

When will these lessons be posted on the website?

[waynenorris]

Could it be possible that the architects that designed the pyramids in Egypt used trigonometric function’s

[Mm-nzxv]

Sir can you please add download and resolution option in your app it will be very helpful.

[samburdge]

Hello, does anyone know a decent geometry Euclidean and 10th grade you and gods bless

[Marusija]

I am really enjoying from Jason lessons, but In this time I couldn't understand anything , he talks to fast ..