Online Geometry Problems, Level: Mathematics Education, High School, College
NCTM Processes: Problem Solving, Reasoning & Proof, Communications, Connections, and Representation

Geometry Problems - Page 6 of 40

Geometry Problem 635
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Semicircle, Diameter, Perpendicular, Inscribed Circle, Radius.

Geometry Problem 634
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Right Triangle, Altitude, Incenters, Areas.

Geometry Problem 633
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Triangle, Parallel Lines, Intersecting Lines.

Geometry Problem 632.
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Triangle, Interior and Exterior Angle Bisectors, Midpoints, Collinear Points.

Geometry Problem 631.
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Triangle, Exterior Angle Bisectors, Collinear Points.

Geometry Problem 630: Clawson Point.
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Orthic and Extangents Triangles, Concurrent lines.

Geometry Problem 629
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Triangle, Perpendicular to Sides, Intersecting Lines, Altitude.

Geometry Problem 628
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Cyclic Quadrilateral, Congruence, Parallel Lines.

Geometry Problem 627
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Cyclic Quadrilateral, Congruence, Concyclic Points.

Geometry Problem 626
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Triangle, Distance from the Incenter to an Excenter.

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

Geometry Problem 624
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Triangle, Incenter, Excenter, Incircle, Excircle, Similarity.

Geometry Problem 623
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Triangle, Incenter, Excenter, Incircle, Excircle, Concyclic Points.

Geometry Problem 622
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Square with Perpendiculars, Transversal, Congruence.

Geometry Problem 621
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Three Rectangles, Diagonals, Centers, Angles.

Video solution: Problems 1-6 (Spanish version)
By Eder Contreras and Cristian Baeza, Chile.

Geometry Problem 620
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Three Rectangles, Diagonals, Centers, Angles.

Geometry Problem 619
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Triangle Area, 30 Degrees, Incircle, Incenter, Tangent.

Geometry Problem 618
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Triangle Area, 60 Degrees, Incircle, Incenter, Tangent.

Geometry Problem 617
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Right Triangle Area, Incircle, Incenter, Tangent, 90 Degrees.

Geometry Problem 616
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Parallelogram, Diagonals, Intersecting Lines, Parallel Lines.

Geometry Problem 615
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Right Triangle with a Square, Diagonals, Center, Area of Quadrilateral.

Geometry Problem 614
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Parallelogram, Diagonals, Intersecting Lines, Parallel Lines.

Geometry Problem 613
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Altitude of a Triangle, Perpendicular, Collinear Points.

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

Geometry Problem 611
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Altitude of a Triangle, Perpendicular, Collinear Points, Parallel.

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