In lessons 7-1 and 7-2, you learned new vocabulary to talk about geometry, specifically angles and circles. Now, you can use your understanding of this vocabulary to listen to a lecture from Yosi Studios about a larger math concept: non-Euclidian geometry.
Video
Exercise
Watch the video below. Open the Exercise Link and complete the Exercise.
![](https://s3.amazonaws.com/smrtenglish.com/shared-images/16x9.png)
![](https://s3.amazonaws.com/smrtenglish.com/shared-images/16x9.png)