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Proposed by a 15 year-old in 1812!!!
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Classroom Contents
Geometry
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- 1 A Japanese Temple Geometry Problem from 1800.
- 2 A relaxing geometry problem.
- 3 A geometry quickie!
- 4 An inscribed tower of squares.
- 5 Portuguese Math Olympiad | 2019
- 6 What is the radius of the large circle?
- 7 A simple geometry problem with a nice generalization.
- 8 A quick geometry problem.
- 9 Hexagon, meet parabola.
- 10 Maximize the area of one ellipse!
- 11 What is the area of the shaded region??
- 12 A quick geometry problem.
- 13 What is the shaded area??
- 14 What is the radius of 🔴??
- 15 What is the shaded area?
- 16 Find the missing radius!
- 17 Find the shaded area!!
- 18 How big is the square?
- 19 The Lunes of Alhazen
- 20 A viewer suggested geometry problem.
- 21 How big can y be?
- 22 A nice geometry trick!
- 23 What is the radius of 🔴 ?
- 24 Proposed by a 15 year-old in 1812!!!
- 25 Half of a deathly area...
- 26 Thales Proportionality Theorem
- 27 What a big twist!
- 28 From my favorite geometry book.
- 29 What is the radius of 🔴?
- 30 a look at the future...
- 31 Challenge: Solve this without Calculus!
- 32 Did I make this too hard?
- 33 a 2500 year old geometry problem.
- 34 What are the side lengths of this triangle??
- 35 Can you solve this with a different method??
- 36 An interesting geometry competition problem.
- 37 A really cool property of polyhedra!
- 38 A tricky geometry problem!
- 39 What happens when you stack circles on each other?
- 40 Can you find the area of this triangle??
- 41 An artist's discovery of the golden ratio.
- 42 Does this red region have a name?? Let's find its area!
- 43 What is the radius of 🔴? -- A fun geometry puzzle.
- 44 a nice geometry problem in the complex plane.
- 45 a nordic geometry problem
- 46 an absurdist geometry problem
- 47 What is Bretschneider's formula??
- 48 An example of classic Japanese geometry -- Sangaku
- 49 Geometry from an exam for teachers.
- 50 A nice Iranian geometry problem
