Online Geometry

Triangles: Theorems and Problems 27

Triangles

Elearning 154

Proposed Problem 154. Triangle, Inradius, Circumradius, Chord.  

Quadrilateral Area, Elearning

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

Quadrilateral Area, Midpoint

Proposed Problem 146. Varignon's Theorem: Quadrilateral, Midpoints, Parallelogram, Area, Perimeter.

Geometry Problem 145. Elearning Triangle

Proposed Problem 145. Four Triangles, Incircle, Tangent and Parallel to Side, Incenters, Circumcenters.  

Geometry problem 144 Triangle

Proposed Problem 144. Four Triangles, Incircle, Tangent and Parallel to Side, Inradii.  

Geometry problem 143

Proposed Problem 143. Four Triangles, Incircle, Tangent and Parallel to Side, Circumradii.  

Elearning 142: Triangle area

Proposed Problem 142. Four Triangles, Incircle, Tangent and Parallel to Side, Areas.  

Elearning 141

Proposed Problem 141. Triangle, Incircle, Tangent , Parallel, Perimeters.  

Elearning 140

Proposed Problem 140. Triangle, Excircle, Tangent, Semiperimeter.  

Elearning 139: Triangle Area

Proposed Problem 139. Triangle Area, Orthic Triangle, Semiperimeter, Circumradius.  

Nagel Theorem

Proposed Problem 138. Nagel's Theorem, Orthic Triangle, Altitudes, Circumradius, Perpendicular.  

Geometry problems 311-320

Triangle Word Cloud

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