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267.2. Concept definition, concept sign.

From which sign we can say that, both triangles are the same?

Check the correct answer!

Similar figures. Line segment length.
Concept definition, concept sign.

Solve tasks to find hidden Geo point coordinates

  1. Algebra: Equation roots.
  2. Algebra: Equivalent inequalities
  3. Algebra: Identical expressions.
  4. Algebra: Numerical inequalities and their properties.
  5. Algebra: Polynomial.
  6. Algebra: Abscissa axis
  7. Algebra: Trinomial.
  8. Geometry: Triangle and its elements, angle opposite and adjacent edge, opposite and adjacent angle in triangle. Triangle median, bisector, height, triangle inequality.
  9. Algebra: Similar monomials
  10. Algebra: Function
  11. Algebra: Functions expression with formula, table, diagram
  12. Algebra: Ordinate axis
  13. Geometry: Angle, angle edges and peak, value, degree, measurement.
  14. Geometry: Triangle angle sum, straight angle cathetus, hypotenuse, Right-angled triangle similarity signs.
  15. Algebra: Mathematical expression. Algebraic expression.
  16. Geometry: Concept definition, concept sign.
  17. Algebra: Contracted multiplication formula: addition and subtraction square; square difference.
  18. Algebra: Proportionality factor k
  19. Algebra: Number gap and their types.
  20. Algebra: Numerical equalities.
  21. Algebra: Polynomial normal form.
  22. Algebra: Subscript concept: base, index, degree
  23. Algebra: Degree with negative index
  24. Algebra: Diagram y = kx + b (drawing)
  25. Algebra: Coordinate plane
  26. Algebra: Percent and proportions
  27. Algebra: Coordinate beginning point
  28. Algebra: Numerical inequalities and their properties.
  29. Algebra: Concept of equation.
  30. Geometry: Opposite, adjacent angles, perpendiculars against a straight line.
  31. Algebra: Number gap and their types.
  32. Algebra: Mathematics expression. Algebraic expression.
  33. Algebra: Concept of equation.
  34. Geometry: Broken line and elements, elementary broken line, closed broken line, broken lines length, polygon, angles, edges peaks, diagonal, polygon perimeter.
  35. Geometry: Point belongs (or not) to the straight line (beam, line segment), half-plane, crossed straight lines, beam, opposite beams, line segment, properties.
  36. Algebra: Connection concept
  37. Algebra: Numerical expression.
  38. Algebra: Fraction (division) basic properties
  39. Algebra: Function y = x²
  40. Algebra: Proportionality factor k
  41. Algebra: Linear function y = kx + b
  42. Algebra: Linear equations ax + b = 0, where a, b ∈ Q.