https://www.khanacademy.org/math/class-10-geometry-od/x6c43792871149241:construction/x6c43792871149241:construction-of-circumcircle-to-triangle/v/draw-circumcircle-of-a-triangle 2026-05-07T12:00:39.408441923Z Draw circumcircle of a triangle In this video, we learn how to draw the circumcircle of a triangle when the length of one side and the measure of the angle opposite to it are given. We begin by discussing the logic behind the construction, ensuring you understand why each step works. Then, we carefully go through the construction process for three different cases—when the angle is acute, when it is a right angle (90°), and when it is obtuse. This lesson blends clear reasoning with practical steps, making the concept of circumcircles easy to grasp. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Draw circumcircle of a triangle In this video, we learn how to draw the circumcircle of a triangle when the length of one side and the measure of the angle opposite to it are given. We begin by discussing the logic behind the construction, ensuring you understand why each step works. Then, we carefully go through the construction process for three different cases—when the angle is acute, when it is a right angle (90°), and when it is obtuse. This lesson blends clear reasoning with practical steps, making the concept of circumcircles easy to grasp. https://cdn.kastatic.org/ka-youtube-converted/oTlxpDpntg0.mp4/oTlxpDpntg0.mp4 586 Construction of circumcircle to triangle