Surface Area of a Sphere explained in easy way | no need to memorise

In this video, explained about surface area of a sphere by doing simple activity. This help us to understand and remember the formula without memorising. Anyone can perform this even Kids. pi and circumference explained here: https://www.youtube.com/watch?v=8KtKNiGrAbo&t=98s Area of a circle link (explained in 3 different methods): https://www.youtube.com/watch?v=guKahDyPhbo&t=95s The Greek mathematician Archimedes discovered that the surface area of a sphere is the same as the lateral surface area of a cylinder having the same radius as the sphere and a height the length of the diameter of the sphere. The lateral surface area of the cylinder is 2πrh where h=2r. https://www.youtube.com/channel/UCTmehr9p2PDXN0i_D1FA1QQ?sub_confirmation=1 Educational Channel Subscribe here: https://www.youtube.com/channel/UCTmehr9p2PDXN0i_D1FA1QQ?sub_confirmation=1 Cooking channel Subscribe here: https://www.youtube.com/channel/UC_ZY5bh0vK9HnEiRzQIbSwQ?sub_confirmation=1 Surface Area of a Sphere explained in easy way | no need to memorise #surfacearea #sphere Thanks, #EgaLearningCurveUK