domingo, 24 de julio de 2011

PACAS DE PAJA. CALCULOS

Terminada la cosecha llegan las empacadoras. Una paca tiene forma prismática.









Sus dimensiones son. 80 x 90 x 220 cm.




Podemos hacer unos sencillos cálculos.Primero podemos calcular el volumen. Basta con multiplicar las tres dimensiones. Podemos calcular la superficie total. Tres pares de caras, las primeras de 80 x90 cm las segundas de 80 x 220 cm y otras dos de 90 x 220 cm. Si suponemos una densidad media de 170 kg por metro cúbico ¿ Sabrías calcular el peso de una paca de estas dimensiones? Recuerda que densidad es igual a masa partido por volumen.


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