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