Recent additions (Page 12), Online Learning

Geometry Problems, Online Education

Geometry Problems 41-50

  

Isosceles triangl 100-40-40 degrees

Geometry Problem 685
Isosceles Triangle, 100-40-40 Degrees, Angles, Congruence.

Nagel Point Theorems and Problems Index

Nagel Points Index
Triangle Center

Outer Nagel Point

Geometry Problem 684: Outer Nagel Point.
Triangle, Excircles, Incircle Tangency points, Concurrent lines, Semi-perimeter, Ceva theorem.

Nagel Point

Geometry Problem 683: Nagel Point.
Triangle, Excircles, Tangency points, Concurrent lines, Semi-perimeter, Ceva theorem.

Gergonne Point Theorem

Geometry Problem 682: Gergonne External Point.
Triangle, Excircle, Tangency points, Concurrent lines, Semiperimeter, Ceva theorem.

Gergonne Point Theorem

Geometry Problem 681: Gergonne Point.
Triangle, Incircle, Tangency points, Concurrent lines, Semiperimeter, Ceva theorem.

Concentric Circles

Geometry Problem 680.
Concentric Circles, Radii, Chords, Perpendicular, Metric Relations.

Triangle, Circle, Median, Proportion

Geometry Problem 679.
Triangle, Circle, Median, Proportion.

Simson Line, Parallel

Geometry Problem 678.
Triangle, Simson Line, Circumcircle, Tangent, Parallel, Perpendicular, Collinear Points.

Parallelogram, Midpoint, Diagonal

Geometry Problem 677.
Parallelogram, Midpoint, Diagonal, Metric Relations.

Circles, Diameter, Tangent, Metric Relations

Geometry Problem 676.
Circles, Diameter, Tangent, Chord, Metric Relations.

Gergonne Point Theorems and Problems Index

Gergonne Points Index
Triangle Center

Collinear points, Intersecting circles 

Geometry Problem 675.
Intersecting Circles, Secant, 45 and 90 Degrees, Collinear Points.

Math Mind Maps Collection

Mathematics Mind Mapping - Index

Triangle, Altitude, Angles

Geometry Problem 674.
Triangle, Altitude, Angles.

Tangent Circles, Chord, Metric Relations

Geometry Problem 673.
Internally tangent circles, Chord, Tangent, Metric Relations.

Caterpillar Bulldozers

Bulldozers: Caterpillar D8, D9, D10, D11 Exhibition.
Video and News.

Tangent Circles, Geometric Mean

Geometry Problem 672.
Internally tangent circles, Chord, Tangent, Geometric Mean.

Geometry problem: Triangle, Angles, Congruence

Geometry Problem 671.
Triangle, Cevian, Angles, Congruence.

Triangle, 60 Degrees

Geometry Problem 670.
Triangle, 60 Degrees, Orthocenter, Incenter, Circumcenter, Congruence.

Geometry problems 661-670

Geometry Problems 661 - 670.
Triangle, Circle, 60 Degrees, Incenter, Circumcenter, Orthocenter, Parallelogram, Metric Relations, Congruence, Similarity.

Triangle, Circumcircle, Incenter

Geometry Problem 669.
Triangle, Circumcircle, Incenter, Midpoint, Collinear points, Mind Map.

Madonna of the Goldfinch by Raphael

Madonna of the Goldfinch by Raphael and Golden Rectangles

Madonna of the Goldfinch by Raphael

Madonna of the Goldfinch by Raphael and Golden Rectangles
John the Baptist offers the goldfinch to Christ in warning of his future.

Right triangle, Incircles

Geometry Problem 668.
Right triangle, Incircles, Parallel, Common Tangent, Mind Map.

Intersecting circles, Tangent, Metric Relations

Geometry Problem 667.
Intersecting Circles, Secant, Tangent, Metric Relations, Mind Map.

Intersecting circles

Geometry Problem 666.
Intersecting Circles, Secant, Tangent, Concyclic points, Mind Map.

Intersecting circles

Geometry Problem 665.
Intersecting Circles, Secant, Tangent, Angles, Mind Map.

Triangle, 60 Degrees, Centers, Angles

Geometry Problem 664.
Triangle, 60 Degrees, Orthocenter, Incenter, Circumcenter, Angles, Triangle centers.

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