21. A perfect square number having n digits where n is even will have square root with 21. A perfect square number having n digits where n is even will have square root with July 12, 2021 Category: Chapter 6 - Squares and Square Roots , Chapter 7 - Cubes and Cube Roots , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related