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Mathematics, 11.12.2021 14:00 Ap621765

Un pyramidion Est une pyrarnide d, e Petite tai'lle
qui coiffe le sommet d'unÊ
pyramide.
La pyramide d'Amenemhat lll
et son pyramidion {en Photo}
sont des pyramides régulières à base carrée.
1, La pyramide est haute de'104,40 m et laiEe de
164Am.
Çalculer le volume. en m1, de eettepyrarnideDonner une valeurâpprochée à l'unité près"
Va[ u me d'u n e'pyra mi de ; V' = [ *n,
?, Le pyramidion est une réduction de eettepyramide
obtenue, par section par un plan paraltèleà sa base- ll
a pour hauteur 1,46 m.
æ. Caltulér levolurne de Êê pyrarrlidion gtsa largeur.
Don ner des vateurs a pprochées a u, dixième' près.
h. Ce pyrar'nidion est en, gr-anite,
Calculer sa masse s-achant que la masse volumique
du granite est, de 2 650 kgi. m3
mercii de repondre

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Answers: 1

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Un pyramidion Est une pyrarnide d, e Petite tai'lle
qui coiffe le sommet d'unÊ
pyramid...
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