Formula↓ If you don't understand click "see inside" The code is stored in the backdrop.
Formula: Diameter ÷ 2 = radius (D/2) 3.14159265359(π) * radius to the power of 2 = the area of a circle (pi r squared) It has pen because I was trying to draw the circle but it didn't work that well so this project uses 0% pen code. Comment if I should make more similar things like things like this and https://scratch.mit.edu/projects/498425917/ Mabey I will do area of square, volume of a cube or volume of a cylinder Also this code is 100% mine