Polygons ratio
Nivsir C_K_Yang czp001 abcwuhang liuguangxi zimpha a_forsteri C3PO Philippe_57721 mathpseudo sinan hervas
Public  10/20/17  6xp  Math  66.7% 
ABCD is a parallelogram.
From each vertex, we join the middle of the 2 opposites sides
F is the middle of BC
E is the middle of CD
We draw the lines AF and AE
We draw thus 8 lines which define an octogon.
What is $ \frac{Area(Octogon)}{Area(Parallelogram)}$
Give your answer rounded to 10 digits after the decimal point
From each vertex, we join the middle of the 2 opposites sides
F is the middle of BC
E is the middle of CD
We draw the lines AF and AE
We draw thus 8 lines which define an octogon.
What is $ \frac{Area(Octogon)}{Area(Parallelogram)}$
Give your answer rounded to 10 digits after the decimal point
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