7. In triangles ABC and DEF, angle B = angle E, angle F = angle C and AB = 3 DE. Then, the two triangles are 7. In triangles ABC and DEF angle B = angle E angle F = angle C and AB = 3 DE. Then the two triangles are July 5, 2021 Category: Chapter 6 - Triangles , Maths , NCERT Class 10 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related