https://www.khanacademy.org/math/class-10-geometry-od/x6c43792871149241:tangents-to-a-circle/x6c43792871149241:circles-in-a-plane/v/two-circles-in-a-plane 2026-05-07T12:00:39.408441923Z Two Circles in a Plane Discover the different ways two circles can lie in a plane in this lesson! We explore non‑intersecting circles, circles that touch at a single point, and circles that intersect each other at two points. With simple explanations and diagrams, this video makes the geometry of circles easy to visualize and understand, helping you grasp the key differences between these cases. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Two Circles in a Plane Discover the different ways two circles can lie in a plane in this lesson! We explore non‑intersecting circles, circles that touch at a single point, and circles that intersect each other at two points. With simple explanations and diagrams, this video makes the geometry of circles easy to visualize and understand, helping you grasp the key differences between these cases. https://cdn.kastatic.org/ka-youtube-converted/DuxEfjNh_rI.mp4/DuxEfjNh_rI.mp4 199 Circles in a Plane https://www.khanacademy.org/math/class-10-geometry-od/x6c43792871149241:tangents-to-a-circle/x6c43792871149241:circles-in-a-plane/v/common-tangent 2026-05-07T12:00:39.408441923Z Common Tangent Explore the geometry of tangent circles in this detailed lesson! We cover the different types of common tangents for non‑intersecting circles, tangent circles, and circles intersecting at two points. You’ll also learn an important theorem about the relationship between the centers of tangent circles and their point of contact, along with its corollaries. With clear explanations and diagrams, this video makes the concept of tangent circles and their tangents easy to understand and apply in problem‑solving. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Common Tangent Explore the geometry of tangent circles in this detailed lesson! We cover the different types of common tangents for non‑intersecting circles, tangent circles, and circles intersecting at two points. You’ll also learn an important theorem about the relationship between the centers of tangent circles and their point of contact, along with its corollaries. With clear explanations and diagrams, this video makes the concept of tangent circles and their tangents easy to understand and apply in problem‑solving. https://cdn.kastatic.org/ka-youtube-converted/TEz_KKYRP_w.mp4/TEz_KKYRP_w.mp4 422 Circles in a Plane