Geometry Problems 141 - 150

Proposed Problem 141.
Triangle, Incircle, Tangent , Parallel, Perimeters.

Proposed Problem 142.
Four Triangles, Incircle, Tangent and Parallel to Side, Areas.

Typography of Problem 142.
Using iPad Apps.

Proposed Problem 143.
Four Triangles, Incircle, Tangent and Parallel to Side, Circumradii.

Proposed Problem 144.
Four Triangles, Incircle, Tangent and Parallel to Side, Inradii.

Proposed Problem 145. Four Triangles, Incircle, Tangent and Parallel to Side, Incenters, Circumcenters.

Proposed Problem 146. Varignon's Theorem: Quadrilateral, Midpoints, Parallelogram, Area, Perimeter.

Varignon's Theorem: Art and typography.

Proposed Problem 147. Quadrilateral, Area, Midpoints, Triangle.

Proposed Problem 148. Quadrilateral, Area, Midpoints.

Proposed Problem 149. Quadrilateral, Area, Midpoints.

Proposed Problem 150. Quadrilateral, Area, Trisection of Sides.