Can you find the red area? – Geometry puzzle

In this math video I (Susanne) explain how to solve this geometry puzzle. We find the area of the semicircle by using the tangent line and the Sine of the angle in the equilateral triangle (Trigonometry). Mathematics explained. 00:00 Intro – Geometry problem 0:45 Solution 2:51 Angles in a triangle 4:03 Sin Cos Tan 6:18 See you later! *My German Math Channel:* ​⁠ ​⁠@MathemaTrick *Find me on Instagram:* https://www.instagram.com/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/MathQueenSusanne Thank you so much for your kindness! It means the world to me!