Optimal thought and optimal fitness through reason, logic, science, passion, and wisdom.
Parallels In an Isosceles Triangle Making a Parallelogram
Parallels In an Isosceles Triangle Making a Parallelogram

Parallels In an Isosceles Triangle Making a Parallelogram

The video is a proof of the proposition “If from any point in the base of an isosceles triangle parallels to the equal sides are drawn, a parallelogram is formed whose perimeter is equal to the sum of the equal sides.” (p. 159 Plane Geometry by Welchons and Krickenberger, (c) 1943)

The full version.

The summary.

Leave a Reply

Your email address will not be published. Required fields are marked *