Online Geometry Education

Go Geometry Problems Collection from 201 to 300. Online College, High School

All Geometry Problems 201 - 300

Problem 201.
Right Triangle, Excircles, Points of Tangency, Exradius, Semiperimeter.

Problem 202. Right Triangle, Incirle, Excircles relatives to catheti, Points of Tangency, Exradius, Semiperimeter.

Problem 203.Right Triangle, Excircles, Exradii, Hypotenuse.

Problem 204.
Right Triangle, Incircle, Excircles, Inradius, Exradii.

Problem 205.
Right Triangle Area, Exradii relatives to legs or catheti.

Problem 206.
Area of a Right Triangle, Inradius, andExradius relative to the hypotenuse.

Problem 207.
Right Triangle, Hypotenuse, Inradius, Exradius relative to the hypotenuse.

Problem 208. Triangle, Excircles, Angles, 360 degrees.

Problem 209.
Triangle, Incircles, Inradius.

Problem 210.
Triangle, Angles, Auxiliary Lines.

Problem 211. 60 Degree Triangle, Equilateral triangles, Areas.

Problem 212.
120 Degree Triangle, Equilateral triangles, Areas.

Problem 213.
Triangle, Incircle, Inradius, Semicircles, Common Tangents.

Problem 214.
Quadrilateral and Angle Bisectors. 

Problem 215.
Quadrilateral, Angle Bisectors, and Cyclic Quadrilateral.

Problem 216. Quadrilateral, Angle Bisectors, and Concurrency.

Problem 217. Right triangle, Altitude and Projections.

Problem 218.
Right triangle, Altitude and Projections.

Problem 219.
Rhombus, Perpendiculars, Arithmetic Mean.

Problem 220.
Right Triangle, Altitude, Angle Bisector, Distance, Arithmetic Mean.

Problem 221.
Viviani's theorem, Equilateral triangle, Interior point, Altitude, Distances.

Problem 222.
Viviani's theorem, Equilateral triangle, Exterior point, Altitude, Distances.

Problem 223.
Viviani's theorem, Isosceles triangle, Altitude, Distances. 

Problem 224.
Viviani's theorem, Isosceles triangle, Altitude, Distances, Point on the extension of the base.

Problem 225.
Viviani's Theorem Extension, Regular Polygon, Apothem, Distance.

Problem 226.
Triangle, Centroid, Perpendicular lines.

Problem 227.
Triangle, Centroid, Exterior line, Perpendicular lines.

Problem 228. Triangle, Midpoints, Exterior line, Perpendiculars lines.

Problem 229. Triangle, Centroid, Transversal, Perpendicular lines.

Problem 230. Triangle, Midpoints, Transversal, Perpendicular lines.

Problem 231. Triangle, Midpoints, Transversal, Perpendicular lines.

Problem 232. Parallelogram, Line through a vertex, Perpendicular lines.

Problem 233.
Parallelogram, Exterior line, Perpendicular lines.
 

Problem 234.
Parallelogram, Line through a vertex, Perpendicular lines.

Problem 235. Parallelogram, Transversal line, Perpendicular lines.

Problem 236.
Quadrilateral, Midpoints, Exterior line, Perpendicular lines.

Problem 237.
Quadrilateral, Midpoints, Exterior line, Perpendicular lines.

Problem 238.
Square, Midpoints, Lines, Congruence.

Problem 239.
Square, Midpoints, Lines, Congruence, Pythagoras.
 
Problem 240.
Triangle with Equilateral triangles, Parallelogram.

Problem 241.
Triangle with Equilateral triangles, Congruence.

Problem 242.
Triangle with Equilateral triangles, Parallelogram.

Problem 243.
Triangle with Equilateral triangles, Parallelogram.

Problem 244.
Square, Diagonals, Centers, Distance.

Problem 245.
Parallelogram with Equilateral triangles.

Problem 246.
Napoleon's Theorem I. External Equilateral triangles. Outer Napoleon triangle.

Problem 247.
Napoleon's Theorem II. Internal Equilateral triangles. Inner Napoleon triangle.

Problem 248.
Napoleon's Theorem III. Inner and outer Napoleon triangles, Area.

Problem 249.
Triangle sides, medians, squares.
Problem 250.
Quadrilateral, sides, diagonals, midpoints, squares.

Problem 251.
Parallelogram, sides, diagonals, squares, areas.

Problem 252.
Rectangle, isosceles right triangle, square, area.

Problem 253.
Triangle, Centroid, Vertices, Distances, Squares.

Problem 254.
Triangle, Centroid, Vertices, a Point, Distances, Squares.

Problem 255.
Triangle, Centroid, Vertices, a Point, Distances, Squares.

Problem 256. Equilateral Triangle, Circumcircle, Point, Vertices, Distances.

Problem 257.
Equilateral Triangle, Circumcircle, Point, Vertices, Side, Distances, Squares.

Problem 258.
Equilateral Triangle, Circumcircle, Point, Vertices, Side, Distances, Squares.

Problem 259.
Equilateral Triangle, Incircle, Tangency Points, Side, Distances, Squares.

Problem 260.
Equilateral Triangle, Incircle, Tangency Points, Vertices, Distances, Squares.

Problem 261. Regular Pentagon inscribed in a circle, sum of distances.

Problem 262. Regular Hexagon inscribed in a circle, sum of distances.

Problem 263. Triangle, Median, Altitude, Orthogonal Projection, Sides.

Problem 264.
Right Triangle, Altitude, Leg projection, Hypotenuse, Similarity, Geometric mean.

Problem 265.
Right Triangle, Pythagorean Theorem.

Problem 266.
Right Triangle, Altitude, Geometric Mean.
 

Problem 267. Right Triangle, Product of Catheti.

Problem 268.
Right Triangle, Catheti and Altitude.

Problem 269.
Right Triangle, Altitude, Perpendicular, Projection.

Problem 270.
Tangent Circles, Common external tangent, Fractional exponents.

Problem 271.
Tangent Circles, the Cube of the Common external tangent.

Problem 272.
Tangent Circles, the Cube of the Common external tangent.

Problem 273. Triangle, Perpendiculars, Area of Squares.

Problem 274.
Isosceles Triangle, 80-80-20, Angles.

Problem 275.
Right Triangle, Circumcircle, Sagitta, Inradius.

Problem 276.
Square, 90 degree Arcs, Circle, Radius.

Problem 277. Tangent Circles, Common External Tangent.

Problem 278. Tangent Circles, Common External Tangent, Chord.

Problem 279.
Tangent Circles, Common External Tangent, Chords, Inradius.

Problem 280.
Quadrilateral, Perpendiculars, Area of Squares.

Problem 281.
Triangles, Angles, Isosceles, Equilateral.

Problem 282.
Right Triangle, Cevian, Angles, Perpendicular, Congruence.

Problem 283.
Circular Sector 90 degrees, Semicircle, Circle inscribed, Radius.

Problem 284.
Circular Sector 90 degrees, Semicircles, Tangent, Radius.

Problem 285. Circular Sector 90 degrees, Semicircles, Circle, Tangent, Radius.

Problem 286.
Square, Midpoints, Octagon.

Problem 287.
Regular Octagon, Diagonals.

Problem 288.
Tangent circles, Harmonic Mean, Radius, Diameter.

Problem 289. Tangent circles, Radius, Perpendicular, Tangent.

Problem 290.
Internally Tangent circles, Radius, Perpendicular, Tangent.

Problem 291. Triangle, Circle, Circumradius, Perpendicular.

Problem 292. Triangle, Parallel, Congruence, Similarity.

Problem 293. Inscribed Quadrilateral, Perpendicular, Rectangle, Isosceles Right triangle, Area, Similarity.

Problem 294.Right triangle, Circumcenter, Excenter, Hypotenuse.

Problem 295. Archimedean Twin Circles, Arbelos, Semicircles, Harmonic Mean, Radii, Perpendicular

Problem 296.
Intersecting Circles, Chord, Radius, Angle, Perpendicular.

Problem 297.
Intersecting Circles, Chord, Secant, Radius, Angle, Perpendicular.

Problem 298.
Intersecting Circles, Chord, Secant, Midpoint, Congruence.

Problem 299.
Intersecting Circles, Chord, Secant, Midpoint, Congruence

Problem 300. Tangent to a circle, Secants, Square.
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