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![Geometry Problems, Online Education](../problem/h_geometry_problem_910.jpg)
Geometry Problems 971-980: Equilateral Triangle, Rectangle, Circle, Parallel, Reflection, Concurrency,
Parallelogram, Orthocenter, Circumcenter.
Level: High School, College
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![Geometry problems 971-980](geometry_problems_971_980_1.jpg) |
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![Geometry Problem 971](../school-college/p971-equilateral-triangle-rectangle-common-vertex-sum-areas-1.jpg) |
Geometry Problem 971.
Equilateral Triangle, Rectangle, Common Vertex, Sum of Right Triangles Areas. |
![Geometry Problem 972](../school-college/p972-equilateral-triangle-three-parallel-vertices-1.jpg) |
Geometry Problem 972.
Equilateral Triangle, Vertices, Three Parallel, Equal Circles, Perpendicular Bisector. |
![Geometry Problem 973](../school-college/p973-square-three-parallel-vertices-metric-relations-1.jpg) |
Geometry Problem 973.
Three Parallel, Square, Vertices, Distance Between Two Parallel Lines, Side, Metric Relations. |
![Geometry Problem 974](../school-college/p974-cevian-triangle-reflection-concurrency-begonia-theorem-point-geogebra-1.jpg) |
Geometry Problem 974.
'Begonia Theorem', Cevian Triangle, Reflection of a point in a line, Concurrency of Lines. GeoGebra, HTML5 Animation for Tablets. |
![Geometry Problem 975](../school-college/p975-isosceles-right-triangle-angle-bisector-45-degrees-hypotenuse-1.jpg) |
Geometry Problem 975.
Isosceles Right Triangle, 45 Degrees, Angle Bisector, Hypotenuse. |
![Geometry Problem 976](../school-college/p976-isosceles-right-triangle-incenter-45-degrees-hypotenuse-1.jpg) |
Geometry Problem 976.
Isosceles Right Triangle, 45 Degrees, Incenter, Angle Bisector, Hypotenuse. |
![Geometry Problem 977](../school-college/p977-acute-triangle-circumcenter-orthocenter-distance-circumradius-metric-relations-1.jpg) |
Geometry Problem 977.
Acute Triangle, Circumcenter, Orthocenter, Distance, Circumradius, Altitude, Metric Relations. |
![Geometry Problem 978](../school-college/p978-parallelogram-diagonal-transversal-similarity-metric-relations-1.jpg) |
Geometry Problem 978.
Parallelogram, Diagonal, Transversal, Similarity, Metric Relations. |
![Geometry Problem 979](../school-college/p979-triangle-cevian-concurrency-angle-bisector-90-degrees-1.jpg) |
Geometry Problem 979.
Triangle, Cevian, Angle Bisector, Concurrency, 90 Degrees, Perpendicular. |
![Geometry Problem 980](../school-college/p980-equilateral-triangle-three-parallel-vertices-construction-1.jpg) |
Geometry Problem 980.
Equilateral Triangle, Vertices, Three Parallel, Equal Circles, Construction. |
![Geometry problems 961-970](geometry_problems_981_990_1.jpg)
![Geometry problems 961-970](geometry_problems_961_970_1.jpg) |
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