# 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
Semicircle, Diameter, Perpendicular, Inscribed Circle, Radius.

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

Geometry Problem 633
Triangle, Parallel Lines, Intersecting Lines.

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

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

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

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

Geometry Problem 628
Cyclic Quadrilateral, Congruence, Parallel Lines.

Geometry Problem 627
Cyclic Quadrilateral, Congruence, Concyclic Points.

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

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

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

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

Geometry Problem 622
Square with Perpendiculars, Transversal, Congruence.

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

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

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

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

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

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

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

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

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

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

Geometry Problem 612