![](../landscape/landscape_px1.gif) |
|
Geometry Problems 671-680: Triangle, Circle, Congruence, Geometric Mean, Tangent, 45 Degrees, Collinear Points, Simson Line,
Concentric, Similarity
|
|
Geometry Problems 671 - 680
|
|
|
![Geometry problem: Triangle, Angles, Congruence](../problem/p671_triangle_angles_1.jpg) |
Geometry Problem 671.
Triangle, Cevian, Angles, Congruence. |
![Tangent Circles, Geometric Mean](../problem/p672_tangent_circles_1.jpg) |
Geometry Problem 672.
Internally tangent circles, Chord, Tangent, Geometric Mean. |
![Tangent Circles, Chord, Metric Relations](../problem/p673_tangent_circles_1.jpg) |
Geometry Problem 673.
Internally tangent circles, Chord, Tangent, Metric Relations. |
![Triangle, Altitude, Angles](../problem/p674_triangle_angle_1.jpg) |
Geometry Problem 674.
Triangle, Altitude, Angles. |
![Collinear points, Intersecting circles](../problem/p675-collinear-points-1.jpg) |
Geometry Problem 675.
Intersecting Circles, Secant, 45 and 90 Degrees, Collinear Points. |
![Circles, Diameter, Tangent, Metric Relations](../problem/p676-circle-metric-relatio1.jpg) |
Geometry Problem 676.
Circles, Diameter, Tangent, Chord, Metric Relations. |
![Parallelogram, Midpoint, Diagonal](../problem/p677-parallelogram-1.jpg) |
Geometry Problem 677.
Parallelogram, Midpoint, Diagonal, Metric Relations. |
![Simson Line, Parallel](../problem/p678-simson-line-1.jpg) |
Geometry Problem 678.
Triangle, Simson Line, Circumcircle, Tangent, Parallel, Perpendicular, Collinear Points. |
![Triangle, Circle, Median, Proportion](../problem/p679-triangle-circle-1.jpg) |
Geometry Problem 679.
Triangle, Circle, Median, Proportion. |
![Concentric Circles](../problem/p680-concentric-circles-1.jpg) |
Geometry Problem 680.
Concentric Circles, Radii, Chords, Perpendicular, Metric Relations. |
![Geometry problems 681-690](geometry_problems_681_690_1.jpg)
![Geometry problems 661-670](geometry_problems_661_670_1.jpg) |
|
|
|
|
|
|
![](../landscape/landscape_bg_right.gif) |
![](../landscape/landscape_px1.gif) |