The Semicircle in a Triangle – A Geometry Puzzle @MathQueenSusanne

Uploaded November 2025 | Updated September 2026, 2 weeks ago

In this math video I (Susanne) explain how to find the area of the semicircle. We solve this geometry puzzle by comparing the areas of the triangles and the square. Mathematics explained.

00:00 Intro – Geometry Puzzle
0:33 Area Semicircle
4:25 Area Triangle
7:43 Solving the equation
10:47 See you later!

*My German Math Channel:*
⁠ @MathemaTrick

*Find me on Instagram:*
instagram.com/mathema_trick

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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.
👉 paypal.me/TheMathQueen

Thank you so much for your kindness! It means the world to me!

#geometry #maths #mathematics

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$ALL Rules for Fractions – Calculating In this math video I (Susanne) explain how to calculate fractions. We add, subtract, mulitply and divide fractions and look at all the rules for these calculations. Mathematics explained. 00:00 Intro – Fractions Rules 0:19 Add Fractions 3:04 Subtract Fractions 5:45 Multiply Fractions 6:58 Divide Fractions 8:34 See you later! *My German Math Channel:* ⁠ @MathemaTrick *Find me on Instagram:* https://www.instagram.com/mathema_trick *Buy Me a Cup of Hot Chocolate?* ☕🍫 Creating these math tutorials takes a lot of brainpower and a warm cup of hot chocolate always helps! If youd like to support my work and keep the tutorials coming, consider treating me to a virtual cup. 👉 https://paypal.me/TheMathQueen Thank you so much for your kindness! It means the world to me! #fractions #maths #mathematics$