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

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

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

Proposed Problem 214. Quadrilateral and Angle Bisectors.

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

Proposed Problem 216. Quadrilateral, Angle Bisectors, and Concurrency.

Proposed Problem 217. Right triangle, Altitude and Projections.

Proposed Problem 218. Right triangle, Altitude and Projections.

Proposed Problem 219. Rhombus, Perpendiculars, Arithmetic Mean.

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