BL and CM are medians on sides AC and AB of triangle ABC, right angled at A. prove that 4 (BL^2 + CM^2) = 5 BC^2. BL and CM are medians on sides AC and AB of triangle ABC right angled at A. prove that 4 (BL^2 + CM^2) = 5 BC^2. October 5, 2020 Category: Chapter 6 - Triangles , Maths , NCERT Class 10 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related