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Geometry Problems 1-1100
Visual Index. |
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Geometry Problem 1410. Right Triangle, Incircle, Excircle, Tangency Points,
45 Degree Angle. |
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Geometry Problem 1409. Right Triangle, Incircle, Excircle, Collinear Tangency Points, Collinearity. |
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Geometry Problem 1408. Right Triangle, Incircle, Excircle, Incenter, Midpoint, Tangency Point, Collinearity. |
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Typography of Geometry Problem 1408. Right Triangle, Incircle, Excircle, Incenter, Midpoint, Tangency Point, Collinearity, iPad Apps. |
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Geometry Problem 1407. Right Triangle, Incircle, Excircle, Collinear Tangency Points, Collinearity. |
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Geometry Problem 1406. Four Congruent Circles, Measurement, Metric Relations,
Sum of the Squares. |
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Geometry Problem 1405. Four Congruent Circles, Congruent Chords. |
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Geometry Problem 1404. Three Circles, Center, Intersecting Points, Collinearity, Congruence. |
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Art of Geometry Problem 1404. Three Intersecting Circles and Circle Patterns using Mobile Apps. |
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Geometry Problem 1403. Quadrilateral, 90 Degree Angle, Perpendicular, Congruence. |
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Geometry Problem 1402. Triangle, Three Tangent Circles, Parallel Diameter, Collinear Points. |
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Geometry Problem 1401. Right Triangle with three circles on the sides, Isosceles, Diameter, Center, Tangent, Congruence. |
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Geometry Problem 1400. Triangle with three rectangles on the sides, Perpendicular Bisectors, Concurrency. |
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Geometry Problem 1399.
Triangle, Circumcircle, Perpendiculars, Angles, Congruence, Cyclic Quadrilateral. |
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Geometry Problem 1398.
Isosceles Triangle, Circle, Radius, Perpendicular, Measurement. |
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Geometry Problem 1397. Circle, Diameter, Tangent, Secant, 90 Degrees Angle,
Perpendicular, Collinear Points. |
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Geometry Problem 1396. Triangle with three rectangles on the sides, Vertices, Perpendicular lines, Concurrency. |
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Geometry Problem 1395. Triangle with three rectangles on the sides, Midpoints, Perpendicular lines, Concurrency. |
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Geometry Problem 1394. Three Circles and Three Pair of Common Internal Tangents, Concurrency. |
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Geometry Problem 1393. Monge's Circle Theorem, Three Circles and Three Pair of Common Tangents, Collinearity. |
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Geometry Problems 1-1400
Visual Index. |
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Geometry Problem 1392. Two Cyclic Quadrilateral, Cyclic Octagon, Circle. |
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Geometry Problem 1391. Two Triangles, Ratio of Areas, Circumcircle. |
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Geometry Problem 1390. Triangle, any point, perpendicular, sum of the squares. |
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Art of Geometry Problem 1389. Generative Art Composition. |
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Geometry Problem 1389. Triangle, 40-120-20 degree, Angle, Congruence. |
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Poster of Geometry Problem 1389. |
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Geometry Problem 1388. Triangle 40-60-80 degree, Incenter, Congruence. |
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Geometry Problem 1387. Quadrilateral, Double Angle, Congruence, Isosceles Triangle. |
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Geometry Problem 1386. Thabit ibn Qurra (826 -901) Theorem and more conclusions, generalized Pythagorean Theorem to any triangle. |
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Geometry Problem 1385. Triangle, Orthocenter, Circle, Circumcircle, Angle Bisector, Midpoint, Collinear Points. |
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Geometry Problem 1384. Triangle, Orthocenter, Circle, Circumcircle, Angle Bisector, 90 Degree. |
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Geometry Problem 1383. Triangle, Median, Circle, Chord, Secant, Sum, Product. |
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Geometry Problem 1382. Circle, Diameter, Radius, Perpendicular, Congruence. |
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Conformal Mapping or Transformation of Problem
1382. |
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Geometry Problem 1381. Parallelogram, Exterior Point, Triangle, Area. |
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Geometry Problem 1380. Common
Internal Tangents. Circles, Secant, Congruent Chords. |
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Geometry Problem 1379. Common External Tangents. Circles, Secant, Congruent Chords. |
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Geometry Problem 1378. Parallelogram, Diagonal perpendicular to a side, Distances from a Point to Vertices, Measurement. |
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Geometry Problem 1377. Isosceles Triangle, Interior Cevian, Equal Sum of Exradii, Excircle. |
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Geometry Problem 1376. Isosceles Triangle, Interior Cevian, Excircles, Tangency Points, Parallel Lines. |
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Geometry Problem 1375. Isosceles Triangle, Interior Cevian, Exradius, Excircle, Altitude to the Base. |
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Typography
art of Problem 1375. |
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Geometry Problem 1374. Isosceles Triangle, Exterior Cevian, Incircle, Excircle, Tangency Points, Parallel Lines. |
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Typography
art of Problem 1374. |
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Geometry Problem 1373. Isosceles Triangle, Exterior Cevian, Inradius, Exradius, Altitude to the Base. |
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Typography
art of Problem 1373. |
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Geometry Problem 1372. Equilateral Triangle, Exterior Cevian, Inradius, Exradius, Altitude, Sketch, iPad Apps. |
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Cevian Definition.
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Geometry Problem 1371: Equilic
Quadrilateral 5 |
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Geometry Problem 1370: Equilic
Quadrilateral 4 |
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Geometry Problem 1369: Equilic
Quadrilateral 3 |
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Geometry Problem 1368: Equilic
Quadrilateral 2 |
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Geometry Problem 1367: Equilic
Quadrilateral 1 |
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Etching and Typography of Geometry Problem 1367: Equilic
Quadrilateral using iPad Apps. |
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Geometry Problem 1366.
Square, Angle Bisector, Perpendicular, Concyclic Points, Circle, Sketch, iPad Apps. |
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Geometry Problem 1365.
Circle, Tangent, Secant, Chord, Parallel, Midpoint, Sketch, iPad Apps. |
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Geometry Problem 1364.
Square, Inscribed Circle, Area, Angle Bisector, Perpendicular, 45 Degrees, Sketch, iPad Apps. |
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Geometry Problem 1363.
Square, Angle Bisector, Perpendicular, 45 Degrees, Angle, Sketch, iPad Apps. |
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Geometry Problem 1362.
Equilateral Triangle Inscribed in a Circle, Lunula, Ratio of Areas, Tangent, Sketch, iPad Apps. |
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Geometry Problem 1361.
Triangle, Two Nine-Point Circles, Feuerbach's Circle, Euler's Circle, Congruent Angles, Sketch, iPad Apps. |
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Geometry Problem 1360.
Triangle, Nine-Point Circle, Feuerbach's Circle, Euler's Circle, Cyclic Quadrilateral, Concyclic Points, Sketch, iPad Apps. |
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Geometry Problem 1359.
Triangle, Circumcircle, Congruent Angles, Midpoints. |
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Geometry Problem 1358.
Regular Dodecagon, Diagonals, Concurrency, Points, Lines. |
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