Triangles: Theorems and Problems 17
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![Triangles](../geometry/triangles_index_17.jpg) |
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![Triangle, median](../education/p451_triangle_median_1.jpg) |
Proposed
Problem 451.
Triangle, Median, Congruence, Proportional Segments. |
![Triangle, Median, Cevian](../problem/p450_triangle_median_1.jpg) |
Proposed
Problem 450.
Triangle, Median, Cevian, Congruence, Proportional Segments. |
![Complete Quadrilateral](../problem/p447_complete_quadrilateral.jpg) |
Proposed
Problem 447.
Complete Quadrilateral, Inradii, Exradii, Sides. |
![Three Tangent Circles](../problem/p445_tangent_circles_1.jpg) |
Proposed
Problem 445.
Three Tangent Circles, Tangency Points, Circumradius. |
![Triangle, Median, Transversal](../problem/p442_triangle_median_1.jpg) |
Proposed
Problem 442.
Triangle, Median, Cevian, Transversal, Congruent Angles. |
![Problem 441: Quadrilateral, Area](../problem/p441_quadrilateral_area_1.jpg) |
Proposed
Problem 441.
Quadrilateral, Triangle, Area, Proportion, Measurement, Similarity. |
![Geometry problem 440](../problem/p440_incenter_angle_1.jpg) |
Proposed
Problem 440.
Triangle, Incircle, Incenter, Angle Bisector, Tangency Points, Circle, Angles. |
![Circle, Angle, Incenter, Isosceles triangle](../problem/p439_circle_angle_1.jpg) |
Proposed
Problem 439.
Isosceles triangle, Cevian, Incenter, Angles, Circle. |
![Triangle, CIrcle, Incircle, Inradius](../problem/p435_circle_radius_1.jpg) |
Proposed
Problem 435.
Triangle, Incircle, Inradius, Congruent circles, tangent, Measurement. |
![Problem 433: Quadrilateral, Area](../problem/p433_quadrilateral_area_1.jpg) |
Proposed
Problem 433.
Quadrilateral, Triangle, Area, Proportion, Measurement, Similarity. |
![Triangle, Altitudes](../problem/p427_triangle_altitude_17.jpg) |
Proposed
Problem 427.
Triangle, Two Altitudes, Square of a Side. |
![Circumradius, Circumcenter, Triangle](../problem/p426_circumradius_cevian_17.jpg) |
Proposed
Problem 426.
Triangle, Circumradius, Circumcenter, concurrent Cevians. |
![Geometry classes problem 425](../problem/p425_quadrilateral_angle_17.jpg) |
Proposed
Problem 425.
Quadrilateral, Triangle, Angles, 10, 20, 50 degrees, Congruence. |
![Triangle, Cevian, Angle, 90 degree, Congruence](../problem/p424_triangle_angle_17.jpg) |
Proposed
Problem 424.
Triangle, Cevian, Angle, 90 degree, Congruence. |
![Triangle, Angle, Congruence](../problem/p423_triangle_angle_17.jpg) |
Proposed
Problem 423.
Triangle, 30, 40 degree, Angle, Congruence. |
![Triangle, Angle, Congruence](../problem/p422_triangle_angle_17.jpg) |
Proposed
Problem 422.
Triangle, 24, 30 degree, Angle, Congruence. |
![Right triangle, Angles, Measurement](../problem/p421_right_triangle_angle_1.jpg) |
Proposed
Problem 421.
Right Triangle, Cevian, Angles, Measurement. |
![Triangle, Angle, Altitude, Side, Measurement](../problem/p420_triangle_angle_17.jpg) |
Proposed
Problem 420.
Triangle, Altitude, Angles, Sides, Measurement. |
![Triangle, Incircle, Excircle, Inradius, Exradius](../problem/p419_triangle_incircle_17.jpg) |
Proposed
Problem 419.
Triangle, Cevian, Incircle, Excircle, Inradius, Exradius |
![Triangle, Incircle, Inradius, Tangent](../problem/p418_triangle_incircle_17.jpg) |
Proposed
Problem 418.
Triangle, Incircle, Inradius, Equal Tangent circles, Radius. |
![Area of a triangle, Cevian, Trisector](../problem/p416_triangle_area_17.jpg) |
Proposed
Problem 416.
Triangle, Cevians, Trisectors, Area. |
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