Concursul "Al. Myller" problema 3

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Bogdan Cebere
Thales
Posts: 145
Joined: Sun Nov 04, 2007 1:04 pm

Concursul "Al. Myller" problema 3

Post by Bogdan Cebere »

Fie \( ABCDE \) un pentagon convex. Demonstraţi că \( {\frac{aria(ABC)}{aria(ABCD)}}+{\frac{aria(CDE)}{aria(BCDE)}} <1 \).

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