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2379.2. Equal triangles, equal triangle appropriate elements, similar properties and signs

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Is it possible to prove that the presented triangles are equal if using triangle equality signs and already known coherences in triangle (sum of all triangle inner angles is 180 degrees)?
Equal triangles.
Equal triangles, appropriate elementrs, similar properties and signs.

Solve tasks to find hidden Geo point coordinates

  1. Algebra: Monomial
  2. Algebra: Numerical inequalities and their properties.
  3. Algebra: Trinomial.
  4. Algebra: Numerical normal form
  5. Geometry: Point, straight line, plane, geometric figure
  6. Geometry: Triangle angle sum, straight angle cathetus, hypotenuse, Right-angled triangle similarity signs.
  7. Algebra: Mutually opposite monomials.
  8. Geometry: Triangle and elements, angle opposite and adjacent edge, opposite and adjacent angle in triangle. Triangle median, bisector, height, triangles ineqaulity.
  9. Algebra: Contracted multiplication formula: addition and subtraction square; square difference.
  10. Algebra: Monomial normal form