https://www.khanacademy.org/math/geometry/hs-geo-congruence/hs-geo-working-with-triangles/v/figuring-out-all-the-angles-for-congruent-triangles-example 2021-02-16T16:08:14Z Corresponding angles in congruent triangles We write the letters of congruent triangles so their order tells us which parts are corresponding. In this video, Sal uses this notation to solve some angles. Sal Khan video https://cdn.kastatic.org/googleusercontent/eEnreKs4WJtRgKYFzsaghVAqi2enwJ2Yelg0GoyR2JIQufIhkSnFl-ruIzaUZaIdJ6O8Nj1o8Qa0W9DWSgtjnxVn Corresponding angles in congruent triangles We write the letters of congruent triangles so their order tells us which parts are corresponding. In this video, Sal uses this notation to solve some angles. https://cdn.kastatic.org/ka-youtube-converted/aDCXPdzyS0s.mp4/aDCXPdzyS0s.mp4 275 Working with triangles https://www.khanacademy.org/math/geometry/hs-geo-congruence/hs-geo-working-with-triangles/e/congruent_triangles_2 2026-05-06T16:50:54.748971034Z Find angles in congruent triangles Given two triangles, determine whether they are congruent and use that to find missing angle measures. Tomer Gal exercise