Geometry Problem 1301.
Arbelos, Semicircles, Diameters, Circle, Incircle, Incenter, Square, Midpoint, Concurrency.
Geometry Problem 1302.
Triangle, Median, Midpoint, Circles, Diameters, Congruence.
Geometry Problem 1303.
Triangle, 60 Degrees, Angle Bisector, Measurement.
Geometry Problem 1304.
Triangle, 120 Degrees, Angle Bisector, Measurement.
Geometry Problem 1305.
Triangle, Circumcircle, Angle Bisector, Arc, Perpendicular, Area.
Geometry Problem 1306.
Cyclic, Inscribed Quadrilateral, Circle, Tangent, Diagonals, Collinear Points.
Geometry Problem 1307.
Triangle, Incenter, Parallel line, Sides, Measurement.
Geometry Problem 1308.
Quadrilateral, Diagonal, Triangle, Incircle, Tangent Line, Sides, Measurement.
Geometry Problem 1309.
Triangle, Circle, Inradius, Excircle, Tangent, Exradius, Measurement.
Geometry Problem 1310.
Square, Center, Right Triangle, Area, Measurement.
Geometry Problem 1311.
Inscribed Triangle, Circle, Circumcircle, Concyclic Points, Measurement.
Geometry Problem 1312.
Triangle, 60 Degrees, Circle, Circumcenter, Orthocenter, Altitude, Distance, Perpendicular, Measurement.
Geometry Problem 1313.
Regular Decagon, Pentadecagon, Equilateral Triangle, Congruence.
Geometry Problem 1314.
Equilateral Triangle, Incircle, Inscribed Circle, Tangent, Congruence.

Geometry Problem 1315.
Triangle, Incircle, Tangent, Chord, Circle, Congruence.
Geometry Problem 1316.
Triangle, Incircle, Tangent, Chord, Midpoint, Sum of two Segments, Congruence.
Geometry Problem 1317.
Triangle, Excircle, Chord, Tangent, Midpoint, Arc, Sum of two Segments, Congruence.
Geometry Problem 1318.
Rectangle, Equilateral Triangle, Distances, Perpendicular, Measurement.
Geometry Problem 1319.
Hexagons, Equilateral Triangles, Center, Midpoints.
Geometry Problem 1320.
Triangle, Incircle, Tangent, Chord, Circle, Parallel, Perpendicular, Collinearity.
Geometry Problem 1321.
Intersecting Circles, Diameter, Secant, Chord, Collinearity.
Geometry Problem 1322.
Triangle, Angle Bisector, Circumcircle, Chord, Secant, Sum of two Angles.
Geometry Problem 1323.
Square, Angle Trisector, Diagonal, Regular Dodecagon, Area, 3060 degrees.
Geometry Problem 1324.
Quadrilateral, Diagonal, 45 Degrees, Angle Bisector, Isosceles Triangle, Congruence.
Geometry Problem 1325.
Octagons, Midpoints, Squares, Mobile Apps, iPad.
Geometry Problem 1326.
Triangle, Cevian, Incenters, Sum of Angles, 270 Degrees.

Geometry Problem 1327.
Two Squares Side by Side, Perpendicular, 90 Degrees, Angle.
Geometry Problem 1328.
Two Squares Side by Side, Perpendicular, 90 Degrees, Congruence.
Geometry Problem 1329.
Two Squares Side by Side, Parallel, Perpendicular, 90 Degrees, Congruence.
Geometry Problem 1330.
Two Squares Side by Side, Parallel, 45, 90 Degrees.
Geometry Problem 1331.
Two Squares Side by Side, Parallel, Perpendicular, 90 Degrees, Measurement.
Geometry Problem 1332.
Two Squares Side by Side, Triangle, Area.
Geometry Problem 1333.
Two Squares Side by Side, Three Triangles, Area, Measurement.
Problem 1334. Square, Kite, Sum of Segments.
Problem 1335. The
Lune of Hippocrates has the same area of a Kite.
Problem 1336. Right Triangle, Cevian, Double Angle, Perpendicular, 90 Degrees.
Problem 1337.
Parallelogram, Diagonals, Circle, Circumcircle, Tangent Line, Triangle, Congruence.
Problem 1338.
Four Squares, Diagonals, Angle, 45 Degrees, Areas.
Problem 1339.
Circle, Diameter, Tangent, Secant, Parallelogram.
Problem 1340.
Triangle, Incenter, Concentric Circles, Isosceles Triangles, Congruence.

Problem 1341.
Isosceles Triangle, 802080 Degrees, Circumcenter, Angle Bisector.
Problem 1342.
Circle, Secant, Chord, Midpoint, Concyclic Points, Cyclic Quadrilateral.
Problem 1343.
Triangle, Excircles, Circle, Tangent, Tangency Points, Chord, Perpendicular, 90 Degrees, Collinearity.
Geometry Problem 1344, Bottema's Theorem: Triangle and Squares with Interactive
Geometry Software.
Geometry Problem 1345. Three Equilateral Triangles, Center, Area, Common Vertex.
Geometry Problem 1346. Equilateral Triangle, Point on the Incircle, Altitude, Perpendicular, Sum of Squares, Distance.
Geometry Problem 1347. Triangle, Angle Bisector, Congruence, Circumcircle, Tangent, Equilateral Triangle.
Geometry Problem 1348. Three Concentric Circles, Equilateral Triangle, Perpendicular Bisector, Congruence.
Geometry Problem 1349. Three Squares, 90 Degrees, Perpendicular Lines, Diagonal. Math Infographic.
