Math introduction - Geometry- Triangles, Circles

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-many-ways-are-there-to-prove-the-pythago... (2019)

The ratio of a circle's circumference to its diameter is always the same: ... (2018)

We don't normally delve too far into history when talking about math, but sometimes it's important to have perspective about how some of our math c... (2020)