5. ABC and DBC are two isosceles triangles on the same base BC (see Fig. 7.33). Show that angle ABD = angle ACD. 5. ABC and DBC are two isosceles triangles on the same base BC (see Fig. 7.33). Show that angle ABD = angle ACD. October 15, 2020 Category: Chapter 7 - Triangles , Maths , NCERT Class 9 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related