Tangent Lines & Secant Lines of Circles, Walk Around Problem - Geometry

This geometry video tutorial provides a basic introduction into tangent lines and secant lines as it relates to circles. A secant line touches a circle at two points. A tangent line touches a circle at exactly one point. The radius of a circle and a tangent line are always perpendicular. This video also explains how to solve the walk around problem in geometry. Circles - Area, Circumference, Radius: https://www.youtube.com/watch?v=D4nGkWOPb6M Circles - Chords, Radius, & Diameter: https://www.youtube.com/watch?v=Bczg2VIDfhE Lines, Rays, Line Segments, & Angles: https://www.youtube.com/watch?v=oeO8f0taQDA 2 Column Proofs - Cong. Segments: https://www.youtube.com/watch?v=cboityRIf4Q Triangle Congruence - SSS, SAS, ASA: https://www.youtube.com/watch?v=jWHOF6cFbpw Central Angles and Circle Arcs: https://www.youtube.com/watch?v=PUNHdOl-E_w ___________________________________ Circles - Central and Inscribed Angles: https://www.youtube.com/watch?v=nd46bA9DKE0 Tangent Tangent Angle Theorems: https://www.youtube.com/watch?v=c3NOVIRyuVw Inscribed and Circumscribed Polygons: https://www.youtube.com/watch?v=lvS4dNlqQAc Power Theorems - Chords, Secants, & Tangents: https://www.youtube.com/watch?v=KFV70dj5OMw Circle Theorems: https://www.youtube.com/watch?v=GppOSNTi5OA _________________________________ Two Column Proofs With Circles: https://www.youtube.com/watch?v=_PT7WpRj8ro Circles Review - Geometry: https://www.youtube.com/watch?v=tJSjTiJeO94 Incenter, Circumcenter, and Orthocenter: https://www.youtube.com/watch?v=EZ4rHobpDOA Distance Between Point and Line in 2D & 3D: https://www.youtube.com/watch?v=5BDrdI3rdQY Area of a Triangle With Vertices: https://www.youtube.com/watch?v=70zQzMPNIKQ ________________________________ Coordinate Geometry: https://www.youtube.com/watch?v=PXnAKcBipKM Geometry Review - Study Guide: https://www.youtube.com/watch?v=KtZai86htng Geometry Final Exam Review: https://www.youtube.com/watch?v=puxjcvBL2IE Final Exams and Video Playlists: https://www.video-tutor.net/ Full-Length Videos and Worksheets: https://www.patreon.com/MathScienceTutor/collections