# Do you know how use pythagoras?

Geometry Level 5

$$\triangle ABC$$ has $$\angle BAC=90°$$, $$D$$ and $$E$$ are points in $$AC$$ and $$BC$$, respectively, such that $$AE$$ and $$BC$$ are perpendiculars and $$BD=DC=EC=1$$. Find $$AC$$ longitude.

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