Prove that the sum of the squares of the diagonals of parallelogram is equal to the sum of the squares of its sides. Prove that the sum of the squares of the diagonals of parallelogram is equal to the sum of the squares of its sides. October 5, 2020 Category: Chapter 6 - Triangles , Maths , NCERT Class 10 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related
