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2 equilaterals on sides of a square, areas compare

Source:

May 11, 2019
geometryarea of a triangleEquilateralsquare

Problem Statement

ABCDABCD is a square of center OO. On the sides DCDC and ADAD the equilateral triangles DAF and DCE have been constructed. Decide if the area of the EDFEDF triangle is greater, less or equal to the area of the DOCDOC triangle. https://4.bp.blogspot.com/-o0lhdRfRxl0/XNYtJgpJMmI/AAAAAAAAKKg/lmj7KofAJosBZBJcLNH0JKjW3o17CEMkACK4BGAYYCw/s1600/may4_2.gif
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