Machu Picchu, Geometry Theorems, Problems, Online Education

Online Geometry: Congruence, Rotation, Translation, Reflection - Page 5

Congruence, Translation, Rotation, Reflection

Triangle, Parallel, Angle Bisector

Geometry Problem 625
Triangle, Parallel Lines, Congruence, Angle Bisector.

Triangle, Altitude, Congruence

Geometry Problem 612
Altitude of a Triangle, Perpendicular, Congruence.

Bottema Theorem. Elearning.

Bottema's Theorem:
Triangle and Squares with Interactive Geometry Software
Step-by-Step construction, Manipulation, and animation.

Square with Right triangles

Geometry Problem 608
Square with Right Triangles, Metric Relations, Congruence, Measurement.

Triangle, Incircle, Inradius, Midpoint, Concurrency

Geometry Problem 592.
Triangle, Incenter, Incircle, Tangency Point, Midpoints, Concurrent Lines, Congruence.

Triangle, Incircle, Inradius, Altitude, Midpoint

Geometry Problem 591.
Triangle, Incenter, Incircle, Inradius, Tangency Point, Midpoint, Altitude.

Online education: Geometry Problem 570, Collinearity

Problem 570.
Square, Center, Right Triangles, Congruence, Collinearity.

Quadrilateral, Excircles

Problem 569.
Quadrilateral, Excircles, Tangency Points, Congruence.

Triangle, Excircles, Congruence

Problem 568.
Triangle, Excircles, Tangency Point, Congruence.

Equilateral triangles

Proposed Problem 404.
External Equilateral triangles, Congruent and Concurrent Lines.

Hexagon, Centroids

Proposed Problem 402.
Hexagon, Triangle, Centroid, Parallel, Congruence, Similarity.

Area of a triangle, Circumcircle, Angle Bisector

Proposed Problem 401.
Area, Triangle, Angle bisector, Circumcircle, Perpendicular bisector, Congruence.

Triangle, Angle Bisector, Circumcircle

Proposed Problem 400.
Triangle, Angle bisector, Circumcircle, Perpendicular, Congruence.

RIght triangle, Midpoints, Distance

Proposed Problem 399.
Right triangle, Midpoints, Distance, Pythagorean theorem, Congruence.

Parallelogram, Area

Proposed Problem 398.
Parallelogram, Area, Similarity, Congruence.

Triangle, Altitude

Proposed Problem 397.
Triangle, Altitude, Midpoints, Congruence.

Square, Angle trisectors

Proposed Problem 396.
Square, Angle Trisectors, Congruence, Area.

Square, Circle

Proposed Problem 394.
Square, 90 Degree Arc, Diagonal, Congruence.

Right triangle, Congruence, Angles

Proposed Problem 363.
Right triangle, Congruence, Angles.

Isosceles triangle 80 80 20

Proposed Problem 358.
Isosceles triangle 80-80-20, Circle, Angles, Congruence.

Isoscele triangle 80-80-20

Proposed Problem 274.
Isosceles Triangle, 80-80-20, Angles.

Equilic Quadrilateral.

Rhomus problem

Proposed Problem 219. Rhombus, perpendiculars, arithmetic mean.

Elearn 218: Right triangle

Proposed Problem 218. Right triangle, Altitude and Projections.

Elearn 217: Right triangle, Altitude, Projections

Proposed Problem 217. Right triangle, Altitude and Projections.

Elearning 187: Right triangle, incircles, angles

Proposed Problem 187. Right Triangle, Altitude, Incenters, Circles, Angles.

Elearning 186: Right triangle, circles

Proposed Problem 186. Right Triangle, Altitude, Incenters, Circles.

Trapezoid and triangle problem

Proposed Problem 185. Trapezoid, Triangles and Angles.

Elearning: Triangle, Angle

Proposed Problem 184. Triangle and Angles.

Geometry Problem 158

Proposed Problem 158. Relation between the Circumradius, Inradius and Exradii of a triangle.

Quadrilateral Area, Elearning

Proposed Problem 147. Quadrilateral, Area, Midpoints, Triangle.

Geometry Problem 135

Proposed Problem 135. Orthic Triangle, Altitudes, Perpendicular, Parallel

Elearning 132

Proposed Problem 132.
Triangle, 60 degree, Orthocenter, Congruence, Midpoint.


Triangle with Squares Problem

Problem 109. Elearning.

Proposed Problem 109. Angles, Right Triangle, Cevian.

Elearning 107.

Proposed Problem 107. Angles, Triangle. Cevian.

Problem 106, Elearning

Proposed Problem 106. Angles, Triangle. Cevian.

Pythagoras curiosity. Online tutoring.

The Pythagorean Curiosity Triangles and squares, fifteen conclusions.

Elearning 103.

Proposed Problem 103.Equilateral Triangle Area, Interior Point, Heron's Formula.

Triangle Square Theorem 1. Elearning, Online Tutoring

Triangle and Squares Theorem 1: with Interactive Geometry Software
Step-by-Step construction, Manipulation, and animation.

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