Geometry classes, Problem 243. Triangle with Equilateral triangles, Rhombuses, Parallelograms. Elearning.

Problem 243. Triangle with Equilateral triangles, Rhombuses, Parallelograms

In the figure, equilateral triangles ABC', ABC", BCA', BCA", ACB', and ACB" are constructed on the sides of a triangle ABC. Prove that (1) A'BA"C, AB'CB", and AC'BC" are rhombuses and (2)A'BC'B", A'CB'C",AB'A"C', A"CB"C', AB"A'C", and A"BC"B' are parallelograms. Post a comment.

Triangle with equilateral triangles, parallelogram

See also:

Equilateral Triangle
Parallelogram

Elearning 243