100. Find the area to be painted in the following block with a cylindrical hole. Given that length is 15 cm, width 12 cm, height 20 cm and radius of the hole 2.8 cm. 100. Find the area to be painted in the following block with a cylindrical hole. Given that length is 15 cm height 20 cm and radius of the hole 2.8 cm. width 12 cm August 10, 2021 Category: Chapter 11 - Mensuration , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related