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![Go Geometry Education: Orthocenter](h_triangle_center_910.jpg)
Geometry:
Orthocenter of a triangle, Theorems and Problems -
Index 8
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![Orthocenter Index](orthocenter_altitude_index.jpg) |
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![Triangle, Altitudes, Parallel, Circumcircle, Angle](../problem/p715_triangle_altitudes_1.jpg) |
Geometry Problem
715.
Triangle, Altitudes, Orthocenter, Parallel, Circumcircle, Angle, Measurement. |
![Orthocenter, triangle, midpoint, perpendicular](../problem/p704_orthocenter_triangle_1.jpg) |
Geometry Problem
704.
Triangle, Orthocenter, Altitude, Midpoint, Perpendicular. |
![Triangle, 60 Degrees](../problem/p670_triangle_60_degrees_1.jpg) |
Geometry Problem 670.
Triangle, 60 Degrees, Orthocenter, Incenter, Circumcenter, Congruence. |
![Triangle, 60 Degrees, Centers, Angles](../problem/p664_triangle_60_degrees_1.jpg) |
Geometry Problem 664.
Triangle, 60 Degrees, Orthocenter, Incenter, Circumcenter, Angles,
Triangle centers. |
![Triangle Centers, Angles](../problem/p662_triangle_angle_1.jpg) |
Geometry Problem 662.
Triangle, Incenter, Circumcenter, Orthocenter, Circle, Angle, Measurement. |
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Antonio Gutierrez
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