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![Online Geometry](../geometry/h_online_math_geometry_728.jpg)
Plane Geometry: Intersection of a Line with a Circle, Secant
Line, Theorems and Problems
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Intersection of a Line with a Circle, Secant: Index
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![Intersection of a Line with a Circle, secant](intersection_line_circle_1.jpg) |
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![](../circle/seven_circle_theorem_170.jpg)
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Seven Circles Theorem
Tangent circles, Intersection of a Line with
a Circle. |
![Dynamic Geometry 1478](../school-college/5/p1478-reuschle-terquem-theorem-3-cevians-circumcircle-concurrent-geogebra-ipad-1.jpg) |
Dynamic Geometry 1478.
Cyclocevian, Reuschle-Terquem Theorem, Concurrent Cevians, Triangle, Circumcircle, Secant line, Step-by-step Illustration. GeoGebra,
iPad. |
![Problem 1432](../school-college/5/p1432-tangent-circles-proportion-similarity-ipad-apps-1.jpg) |
Geometry Problem 1432.
Tangent Circles, Secant, Tangent Lines, Proportionality, Similarity,
Poster Typography, iPad. |
![Geometry problem 1342](../school-college/4/p1342-circle-chord-secant-parallel-midpoint-cyclic-1.jpg) |
Problem 1342.
Circle, Secant, Chord, Midpoint, Concyclic Points, Cyclic Quadrilateral.
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![Geometry problem 1322](../school-college/4/p1322-triangle-bisector-circle-sum-angle-1.jpg) |
Geometry Problem 1322.
Triangle, Angle Bisector, Circumcircle, Chord, Secant, Sum of two Angles. |
![Geometry problem 1321](../school-college/4/p1321-intersecting-circles-diameter-collinearity-1.jpg) |
Geometry Problem 1321.
Intersecting Circles, Diameter, Secant, Chord, Collinearity. |
![Geometry problem 1239](../school-college/3/p1239-intersecting-circle-secante-concyclic-mobile-apps-1.jpg) |
Geometry Problem 1239
Intersecting Circles, Secant, Concyclic Points, Congruence. Mobile Apps |
![Geometry problem 1236](../school-college/3/p1236-intersecting-circles-secant-concyclic-points-1.jpg) |
Geometry Problem 1236
Intersecting Circles, Secant, Concyclic Points. |
![Geometry problem 1172](../school-college/2/p1172-cyclic-quadrilateral-circle-secant-triangle-similarity-proof-1.jpg) |
Geometry Problem 1172
Cyclic Quadrilateral, Circle, Secant, Triangle, Similarity, Metric Relations. |
![Geometry problem 1150](../school-college/2/p1150-circle-secant-90-degrees-perpendicular-congruence-1.jpg) |
Geometry Problem 1150.
Circle, Perpendicular Secants, 90 Degrees, Congruence. |
![Geometry Problem 954](../school-college/p954-intersecting-circles-secant-angle-bisector-1.jpg) |
Geometry Problem 954.
Intersecting Circles, Secant, Common Chord, Cyclic Quadrilateral, Angle Bisector. |
![Geometry Problem 953](../school-college/p953-intersecting-circles-secant-90-degrees-perpendicular-1.jpg) |
Geometry Problem 953.
Intersecting Circles, Secant, Common Chord, Cyclic Quadrilateral, Perpendicular. |
![Geometry Problem 950](../school-college/p950-intersecting-circles-secant-circumcenter-concyclic-1.jpg) |
Geometry Problem 950.
Intersecting Circles, Secant, Cyclic Quadrilateral, Concyclic Points. |
![Geometry Problem 949](../school-college/p949-intersecting-circles-secant-cyclic-quadrilateral-concyclic-1.jpg) |
Geometry Problem 949.
Intersecting Circles, Secant, Cyclic Quadrilateral, Concyclic Points. |
![Geometry Problem 948](../school-college/p948-intersecting-circles-secant-cyclic-quadrilateral-concyclic-1.jpg) |
Geometry Problem 948.
Intersecting Circles, Secant, Cyclic Quadrilateral, Concyclic Points. |
![Problem 941](../school-college/p941-tangent-circle-secant-proportion-equal-angle-1.jpg) |
Geometry Problem 941.
Circles Tangent Externally, Tangent, Secant, Proportion, Angle. |
![Problem 940](../school-college/p940-circle-tangent-secan-parallel-90-degrees-midpoint-1.jpg) |
Geometry Problem 940.
Circle, Tangent, Secant, Chord, Parallel, Perpendicular, 90 Degrees, Midpoint. |
![Problem 939](../school-college/p939-circle-tangent-parallel-secant-midpoint-1.jpg) |
Geometry Problem 939.
Circle, Tangent, Secant, Chord, Parallel, Midpoint. |
![Right Triangle, Altitude, Incircles, CIrcumcircles, COngruence](../school-college/795-intersecting-circles-secant-chord-midpoint-90-degrees-1.jpg) |
Geometry Problem 795
Intersecting Circles, Common Chord, Midpoint, Tangent, Secant Line, Perpendicular, 90 Degrees. |
![Intersecting Circles, Secant Line, Midpoint, Cyclic Quadrilateral](../school-college/p788-intersecting-circle-midpoint-cyclic-quadrilateral-1.jpg) |
Geometry Problem 788
Intersecting Circles, Secant Line, Midpoint, Cyclic Quadrilateral. |
![Intersecting Circles, Midpoint, Secant, Bisection](../problem/p773-intersecting-circles-midpoint-secant-1.jpg) |
Geometry Problem 773
Intersecting Circles, Midpoint, Secant line, Bisection. |
![Equilateral triangle, Circle, Tangent](../problem/p767-equilateral-triangle-tangent-to-circle-1.jpg) |
Geometry Problem 767
Equilateral Triangle, Circle tangent to a side, Tangent line, Measurement, Secant. |
![Intersecting Circles, Concyclic points](../problem/p738_cyclic_quadrilateral_1.jpg) |
Geometry Problem
738.
Intersecting Circles, External Common Tangent, Common Chord, Secant, Circumcircle, Cyclic Quadrilateral, Concyclic Points. |
![Cyclic quadrilateral, angle bisector, measurement](../problem/p575_cyclic_quadrilateral_1.jpg) |
Problem 575.
Cyclic quadrilateral, Angle bisector, Measurement, Intersection of a Line with a
Circle. |
![Circle, Chord, Secante, Angle bisector](../problem/p574_circle_angles_1.jpg) |
Problem 574.
Circle, Chord, Secant, Angle Bisector, Perpendicular, Intersection of a Line
with a Circle. |
![Cyclic quadrilateral, Angle bisector](../problem/p573_cyclic_quadrilateral_1.jpg) |
Problem 573.
Cyclic quadrilateral, Angle bisector, Perpendicular, Intersection of a Line with
a Circle. |
![Online Math: Geometry Problem 571, Circle](../problem/p571_circle_diameter_1.jpg) |
Problem 571.
Circle, Diameter, Chord, Perpendicular, Measurement, Intersection of a Line with
a Circle. |
![Triangle, Excircles, Congruence](../problem/p568_quadrilateral_circle_1.jpg) |
Problem 568.
Triangle, Excircles, Tangency Point, Congruence, Intersection of a Line with a
Circle. |
![Geometry problem 567](../problem/p567_right_triangle_1.jpg) |
Problem 567.
Right triangle, Incircle, Excircle, Collinear tangency points, Intersection of a
Line with a Circle. |
![Triangle, Circle, Congruence, Concyclic points](../problem/p565_triangle_circle_1.jpg) |
Problem 565.
Triangle, Isogonal lines, Angles, Congruence, Concyclic Points, Intersection of
a Line with a Circle. |
![Complete quadrilateral, Circles](../problem/p564_quadrilateral_circle_1.jpg) |
Problem 564.
Complete Quadrilateral, Incenter, Excenter, Concyclic Points, Incircle,
Excircle, Intersection of a Line with a Circle. |
![Triangle, Circumcircles, Circumcenters, Concyclic](../problem/p548_triangle_circumcenters.jpg) |
Problem 548.
Triangle, Transversal, Four Circumcircles, Circumcenters, Concyclic Points,
Similarity, Intersection of a Line with a Circle. |
![Triangle, Four circumcircles](../problem/p547_triangle_circumcircles.jpg) |
Problem 547.
Triangle, Transversal, Four Circumcircles, Concurrency, Intersection of a Line
with a Circle. |
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