Teoremas y Problemas de Geometria, Pre-Universitaria, Bachillerato

Ángulos de 30, 60 y 120 Grados, Teoremas y Problemas - Tabla de Contenido

Angulos de 30, 60, 120 Indice

Cuadrilátero Equílico.
60 y 120 grados 

Triangulo, Angulo, 30 grados

Problema de Geometría 820.
Triangulo, Cevianas, Angulo, 30 grados.

Cuadrilatero, Triangulo, Angulo, 30 grados

Problema de Geometría 819.
Cuadrilátero, Triangulo, Angulo, 30 grados.

Dos triangulos equilateros con un vertice comun

Problema de Geometría 814.
Dos triángulos equiláteros con un vértice común, Angulo de 60 grados.

Area del triangulo circunscrito, angulo 30 grados

Problema de Geometría 619
Área del Triangulo, Angulo de 30 Grados, Circunferencia Inscrita, Incentro, Tangente.

Triangulo, area, 60 grados

Problema de Geometría 618
Área del Triangulo, Angulo de 60 Grados, Circunferencia Inscrita, Incentro, Tangente.

Quadrilateral, 60, 75, 135 degrees

Problema de Geometría 405.
Cuadrilatero, 60, 75, y 135 grados, Punto Medio.

Triangle, 120 degrees, angle bisectors

Problema de Geometría 368.
Triangle, 120 degrees, Angle bisectors, Perpendicular.

Circular sector 60 degrees

Problema de Geometría 365.
Circular Sector of 60 degrees, Midpoints, Perpendicular, Congruence.

Triangle and angle bisector of 120 degrees

Problema de Geometría 304.
Triangle, Angle bisector of 120 degrees.

Triangle and angle bisector of 60 degrees

Problema de Geometría 302.
Triangle, Angle bisector of 60 degrees.

Triangle, Angles

Problema de Geometría 281.
Triangles, Angles, Isosceles, Equilateral.
60 degrees angle.

Square, Circle, 90 Arc

Problema de Geometría 276.
Square, 90 degree Arcs, 60 degrees angle, Circle, Radius.

Isoscele triangle 80-80-20

Problema de Geometría 274.
Isosceles Triangle, 80-80-20, Angles.
60 degrees angle.

Regular hexagon inscribed in a circle

Problema de Geometría 262.
Regular Hexagon inscribed in a circle, sum of distances, 60 degrees angle.

Elearning 260: Problem about equilateral triangle

Problema de Geometría 260.
Equilateral Triangle, Incircle, Tangency Points, Vertices, Distances, Squares, 60 degrees angle.

Elearning 259: Equilateral triangle, Incircle

Problema de Geometría 259.
Equilateral Triangle, Incircle, Tangency Points, Side, Distances, Squares, 60 degrees angle.

Elearning 258: Equilateral triangle, Incircle

Problema de Geometría 258.
Equilateral Triangle, Circumcircle, Point, Vertices, Side, Distances, Squares, 60 degrees angle.

Problem 257: Equilateral triangle, circumcircle

Problema de Geometría 257.
Equilateral Triangle, Circumcircle, Point, Vertices, Side, Distances, Squares, 60 degrees angle.

Elearning 256: Equilateral triangle

Problema de Geometría 256.
Equilateral Triangle, Circumcircle, Point, Vertices, Distances, 60 degrees angle.

Elearning: Napoleon Theorem III

Problema de Geometría 248.
Napoleon's Theorem III. Inner and outer Napoleon triangles, Area, 60 degrees angle.

Napoleon Theorem II

Problema de Geometría 247.
Napoleon's Theorem II. Internal Equilateral triangles. Inner Napoleon triangle, 60 degrees angle.

Napoleon Theorem I

Problema de Geometría 246.
Napoleon's Theorem I. External Equilateral triangles, 60 degrees angle.

Elearning 245: Parallelogram

Problema de Geometría 245. Parallelogram with Equilateral triangles

Elearning 243

Problema de Geometría 243. Triangle with Equilateral triangles, Parallelogram.

Elearn 242: Equilateral triangle and parallelogram

Problema de Geometría 242. Triangle with Equilateral triangles, Parallelogram, 60 degrees angle.

Equilateral triangle, congruence SAS

Problema de Geometría 241. Triangle with Equilateral triangles, Congruence.

Triangle with equilateral triangles

Problema de Geometría 240. Triangle with Equilateral triangles, Parallelogram, 60 degrees angle.

Viviani theorem, Equilateral triangle, exterior point

Problema de Geometría 222. Viviani's theorem, Equilateral triangle, Exterior point, 60 degrees angle, Distances.  

Viviani's theorem I

Problema de Geometría 221. Viviani's theorem, Equilateral triangle, Interior point, Distances, 60 degrees angle.  

Elearn 212: 120 degree triangle, area

Problema de Geometría 212. 120 Degree Triangle, Equilateral triangles, Areas.

Elearn 211: 60 degree triangle, area

Problema de Geometría 211. 60 Degree Triangle, Equilateral triangles, Areas.

Elearn 210

Problema de Geometría 210. Triangle, Angles, Auxiliary Lines, 60 degrees angle.

Problem: Triangle, Altitude, Angles

Problema de Geometría 199. Triangle, Quadrilateral, Angles.

Trapezoid and triangle problem

Problema de Geometría 185. Trapezoid, Triangles and Angles, 60 degrees angle.

Elearning: Triangle, Angle

Problema de Geometría 184. Triangle and Angles, 60 degrees angle.

Overlapping circles, Angle

Problema de Geometría 182. Overlapping Circles, Find an angle, 60 degrees angle.

Elearning 132

Problema de Geometría 132. Triangle, 60 degrees, Orthocenter, Congruence, Midpoint.

Euclid's Elements Book XIII, Proposition 10

Euclid's Elements, Book XIII, Proposition 10 One page visual illustration, 60 degrees angle.

Video: Geometry of Circles, 1979

Geometry of Circles "Sesame Street" by Philip Glass, 1979, 60 degrees angle.

Problema de Geometría 50. Triangle with Equilateral triangles, 60 degrees angle.
Seventeen conclusions.

Problema de Geometría 44. Angles and triangles, 60 degrees angle.

Problema de Geometría 43. Angles and triangles.

Problema de Geometría 42. Angles and triangles, 60 degrees angle.

Morley's Theorem

Animated illustration of the celebrated Morley's angle trisector theorem, 60 degrees angle, equilateral triangle. 

Morley's Triangle & Center: Trisection of angles.

Problema 50.
Triangulo escaleno con triángulos equiláteros, Perpendiculares, Puntos medios y Congruencia.

Problema 40: Triangulo, Incentro, Excentro

Problema 40.
Triangulo 40-60-80 grados, Incentro, Excentro, Bisectriz, Distancia.

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