In this lesson we are going to talk about tangents. Tangents are lines that intersect the circle at exactly one point, and we are going to go over a couple of theorems that deal with tangents. The first one we'll cover tells us that if a line is tangent to a circle, and there is a radius that is also touching that same point, then the radius and this tangent are perpendicular. We'll also cover the converse of this theorem. You'll also learn about common tangents - external and internal. Lastly, we'll mention a special type of polygons that are called circumscribed polygons.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.