ABC is an isosceles triangle with AC=BC. If AB^2 = 2AC^2, prove that ABC is a right triangle. ABC is an isosceles triangle with AC=BC. If AB^2 = 2AC^2 prove that ABC is a right triangle. October 5, 2020 Category: Chapter 6 - Triangles , Maths , NCERT Class 10 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related