WhyNot Science on Instagram: "Why Surface Area of a Cone = πr(r + l) A cone’s surface has two parts — the circular base and the curved (lateral) surface. When you unwrap the lateral surface, it forms a sector of a circle. The radius of that sector is the slant height (l), and its arc length equals the circumference of the base (2πr). By rearranging that sector into a rectangle, its area becomes πrl. Adding the base area πr², we get the total surface area πr(r + l). ⚠️DISCLAIMER⚠️: This is not re

FAZ on Instagram: "Chrome finish, anyone?✨ So this was an experiment to see how far I could push the surface quality and that chrome material finish on a tablet app. Also, I’ve just released this new tutorial chapter in my Masterclass explaining how I built this seamless shape transitions, precise fillets, and clean corner radii. It’s free update for all students inside the course 🙌🏻. You also get access to my 3D source files with render settings. 🔗 MASTERCLASS ➔ Link in my bio. ——— iPhone Ai