90. Express 81 as the sum of first nine consecutive odd numbers. 90. Express 81 as the sum of first nine consecutive odd numbers. July 15, 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 Example 20 : Express 36 as a sum of successive odd natural numbers.12. The sum of first n odd natural numbers is38. The sum of first six odd natural numbers is _________.
