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Online Geometry: Circles, Theorems and Problems
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Circles, Theorems and Problems: Table of Content
(Page 11)
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![Circles](../geometry/circles_index_17.jpg) |
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![Square, Circle, Metric Relation](../problem/p605_circle_square_1.jpg) |
Geometry Problem
605
Circle, Square, Chord, Perpendicular, Circular Segment, Metric Relations. |
![Cyclic quadrilateral, Incenter, Excenter](../problem/p601_quadrilateral_circle_1.jpg) |
Geometry Problem
601
Cyclic Quadrilateral, Incenter, Excenter, Rectangle. |
![Circle Area, Tangent](../problem/p600_circle_area_1.jpg) |
Geometry Problem
600
Circle, Area, Tangent, Semicircle, Tangency Point. |
![Triangle, Incircle, Inradius, Midpoint, Concurrency](../problem/p592_triangle_incenter_1.jpg) |
Geometry Problem
592.
Triangle, Incenter, Incircle, Tangency Point, Midpoints, Concurrent Lines, Congruence. |
![Triangle, Incenter](../problem/p587_triangle_incenter_1.jpg) |
Geometry Problem
587.
Triangle, Incenter, Incircle, Tangency Point, Midpoint, Distance, Half the Difference. |
![Isosceles triangle, Circle](../problem/p577_isosceles_concyclic_1.jpg) |
Problem
577.
Isosceles triangle, Midpoint, Perpendicular, Concyclic points, Circle. |
![Math Education: Triangle, Incenter](../problem/p562_triangle_incircle_1.jpg) |
Problem
562.
Triangle, Cevian, Incenter, Perpendicular, Concyclic Points, Cyclic
Quadrilateral. |
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Problem
536.
Intersecting Circles, Chord, Perpendicular. |
![Sawayama - Thebault Theorem](../problem/p535_sawayama_thebault_1.jpg) |
Problem
535.
Sawayama - Thebault's theorem: Triangle, Incircle, Circle, Center, Tangent,
Collinear. |
![Problem 533: Euclid's Elements Book XIII, Proposition 10](../problem/p533_euclid_book_xiii_10_1.jpg) |
Problem
533.
Euclid's
Elements, Book XIII, Proposition 10. One page visual illustration. |
![Right Trapezoid, Circle, Diameter](../problem/p529_trapezoid_circle_1.jpg) |
Problem 529.
Right Trapezoid, Circle, Diameter. |
![Circle, Tangent, Secant, Midpoint](../problem/p527_circle_tangent_secant_.jpg) |
Problem 527.
Circle, Tangent, Secant, Chord, Midpoint, Measurement. |
![Equilateral triangle, Circumcircle](../problem/p526_equilateral_triangle_1.jpg) |
Problem 526.
Equilateral Triangle, Circumcircle, Chord, Measurement. |
![Circle, Tangent, Diameter, Radius, Congruence](../problem/p525_circle_tangent.jpg) |
Problem 525.
Circles, Diameter, Tangent, Radius, Congruence, Measurement. |
![Circle with equilateral triangles](../problem/p524_circle_equilateral_tri.jpg) |
Problem 524.
Circle, Equilateral Triangles, Midpoint, Side, Measurement. |
![Tangent Circles](../problem/p523_tangent_circle_1.jpg) |
Problem 523.
Tangent Circles, Diameter Perpendicular, Collinearity. |
![Geometry Problem: Right triangle, Circle, Tangent](../problem/p522_triangle_circle_1.jpg) |
Problem 522.
Right Triangle, Circle, Diameter, Tangent. |
![Circle, Diameter, Chord, Perpendicular](../problem/p500_circle_diameter_1.jpg) |
Problem
500.
Circle, Diameter, Chord, Perpendicular, Measure. |
![Elearn 494: Circular Sector, 90 Degrees](../problem/p494_circular_sector_1.jpg) |
Problem 494.
Circular Sector, 90 Degrees, Semicircle, Chord, Parallel. |
![Elearn 493: Right triangle, Circumcircle, Perpendicular](../problem/p493_triangle_circle_1.jpg) |
Problem 493.
Right Triangle, Circumcircle, Perpendicular, Chord. |
![Elearn 492: Quadrilateral, CIrcle, Perpendicular, Parallel](../problem/p492_quadrilateral_circle_1.jpg) |
Problem 492.
Cyclic Quadrilateral, Circle, Perpendicular, Side, Diagonal, Parallel. |
![Elearn 491: Square, Incircles, Radius, Side](../problem/p491_square_circle_1.jpg) |
Problem 491.
Square, Right Triangle, Incircle, Inscribed Circle, Radius. |
![Elearn 490: Circular Sector Area](../problem/p490_circular_sector_area_1.jpg) |
Problem 490.
Tangent Circles, Arc, Radius, Circular Sector, Area. |
![Circle, Area, 90 Degrees](../problem/p487_circle_area_1.jpg) |
Problem 487.
Intersecting
Circles, Area, Diameter, Parallel, 90 Degrees. |
![Tangent circles, Midpoint, Arc, Collinear](../problem/p486_tangent_circles_1.jpg) |
Problem 486.
Tangent circles, Chord, Arc, Midpoint, Collinearity, Congruence. |
![Square, Circles, Tangent](../problem/p485_square_circles_1.jpg) |
Problem 485.
Square, Side, Circles, Tangent, Radius, Measurement. |
![Triangle, Circumcircle, Incircle, Excircle](../problem/p482_triangle_circle_1.jpg) |
Problem 482.
Triangle, Circumcircle, Incenter, Excenter, Midpoint, Cyclic Points. |
![Triangle, circle, angle, altitude](../problem/p480_circle_angle_1.jpg) |
Problem 480.
Triangle, Circle, Center, Altitude, Angle, Circumcenter. |
![Triangle, Sides, Circumradius](../problem/p478_triangle_circle_1.jpg) |
Problem 478.
Triangle, Sides, Circumradius, Circumcenter, Circumcircle. |
![Triangle, Circumcenter, Angle](../problem/p476_triangle_circumcircle_.jpg) |
Problem 476.
Triangle, Circumcenter, Circumcircle, Angles. |
![Tangent circles, secant, parallel](../problem/p475_circle_tangent_1.jpg) |
Problem 475.
Tangent Circles, Secant, Tangent, Parallel. |
![Parallelogram, Diagonal, Circle](../problem/p474_parallelogram_circle_1.jpg) |
Problem 474.
Parallelogram, Diagonal, Circle, Vertex. |
![Circle, chord, congruence, angle](../problem/p468_circle_chord_angle_1.jpg) |
Proposed
Problem 468.
Circle, Chord, Midpoint, Congruence, Angle. |
![Concentric circles](../problem/p467_concentric_circles_1.jpg) |
Proposed
Problem 467.
Concentric Circles, Chord, Tangent, Congruence, Measurement. |
![Concentric circles, secant, congruence](../problem/p466_concentric_circles_1.jpg) |
Proposed
Problem 466.
Concentric Circles, Secant, Congruence, Measurement. |
![Square, Arc, 90 degrees](../problem/p465_square_90_degree_1.jpg) |
Proposed
Problem 465.
Square, Arc, Angle, 90 Degrees, Measurement. |
![Square, Arc, Angle](../problem/p464_square_arc_120_degree_.jpg) |
Proposed
Problem 464.
Square, Arcs, Center, Angle, 90 Degrees, 120 Degrees. |
![Concentric Circles, Tangent, Area](../problem/p463_circle_triangle_area_1.jpg) |
Proposed
Problem 463.
Three Concentric Circles, Secant, Tangent, Triangle, Area. |
![Square, Circle, Arc, 90 Degrees](../education/p462_circle_square_radius.jpg) |
Proposed
Problem 462.
Square, Arcs, 90 Degrees, Circle, Tangent, Radius, Measurement. |
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Email | By
Antonio Gutierrez
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