10th Grade Exam From 1964 – Find All Angles! @MathQueenSusanne

Uploaded March 2026 | Updated September 2026, 3 weeks ago

In this math video I (Susanne) explain how to solve a 10th grade final exam problem from 1964! We use the Law of Cosines and the Law of Sines to find all the angles in a triangle when all three sides are given. Follow along step by step as we break down the problem and show exactly how to calculate each angle. Mathematics explained.

00:00 Intro – Geometry Challenge
0:34 How to solve this
3:26 Law of Cosines
9:55 Law of Sines
14:07 See you later!

*My German Math Channel:*
⁠ @MathemaTrick

*Find me on Instagram:*
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.
👉 paypal.me/TheMathQueen

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

#exam #maths #mathematics

10th Grade Exam From 1964 – Find All Angles!

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