3 Circles, 1 Rope – How Long Is It?

In this math video I (Susanne) explain how to solve a beautiful geometry puzzle: three equal circles touch each other, and we want the length of the rope wrapped around them. By constructing an equilateral triangle between the centers, using angles, and breaking the shape into simple rectangles and arcs, we discover an elegant shortcut to the total rope length. Mathematics explained. 00:00 Intro – Math Puzzle 0:37 Length of the rope 3:46 The Triangle 7:15 The Circular Arc 11:01 See you later! My German Math Channel: ​⁠ @M‪@MathemaTrick‬ Find me on Instagram:   / mathema_trick   Buy Me a Cup of Hot Chocolate? ☕🍫 Creating these math tutorials takes a lot of brainpower and a warm cup of hot chocolate always helps! If you'd like to support my work and keep the tutorials coming, consider treating me to a virtual cup. 👉 https://paypal.me/TheMathQueen Thank you so much for your kindness! It means the world to me! #puzzle #maths #geometry