sonom

• 1. Fibonacci spiral
• 2. modern teacher
• 3. a math trick-3
• 4. measuring van gogh's cypress
• 5. the golden ratio (and aphrodite's phi)
• 6. tux walks up and down...
• 7. solve the equation
• 8. find the tan(φ)
• 9. area of a circle-1
• 10. area of a circle
• 11. quadratic formula
• 12. Vieta's formulas
• 13. components of a force
• 14. find the angles
• 15. find the angle
• 16. sum of the interior angles of a n-gon
• 17. locating reals on a number line
• 18. adding and subtracting integers
• 19. trammel of archimedes
• 20. regular star polygons
• 21. Христос Bоскресе!
• 22. rolling coin paradox
• 23. circles of a regular n-gon
• 24. a multiplication table
• 25. fractional exponents
• 26. tangram puzzle-1
• 27. newton's disk
• 28. fraction to decimal
• 29. rolling two dice-1
• 30. rolling a dice
• 31. egyptian system of numeration
• 32. the height of the pyramid