On a square handkerchief, nine circular designs each of radius 7cm are made (see figure). Find the area of the remaining portion of the handkerchief. nine circular designs each of radius 7cm are made (see figure). Find the area of the remaining portion of the handkerchief. On a square handkerchief October 6, 2020 Category: Chapter 12 - Areas Related to Circles , Maths , NCERT Class 10 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related