Bonjour, j'aurais besoin d'aide pour cet exercice de mathématique :

Un artisan confectionne des lampes coniques de 10 cm de rayon et 50 cm de hauteur.

a. Il les confectionne dans des boîtes en forme de parallélépipède rectangle.
Donne les dimensions d'une boîte

b. Combien de lampes peut-il expédier dans un carton de 50 cm x 50 cm x 60 cm ?

Merci d'avance ^^ !
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Hello, oui ce "hello" est de rigueur eh eh puisqu'en faite, il s'agit d'anglais, c'est un exercice sur le prétérit simple et le prétérit continu : a) Consigne : Prétérit simple ou continu ? 1. Bruce and his parents ................ (have) dinner when the doorbell ................ (ring). 2. When I ................ (go) to bed yesterday, it ............... (rain). 3. My best friend ................ (get off) the tbe when I ............... (see) him yesterday. 4. What ................ you ................ (do) when the Twin Towers ................ (collapse) ? 5. When................ you last .................(take) the train ? 6. Yesterday, I ........................ (eat) some cereal and ........................ (drink) a glass of milk and then I ........................ (leave) home. 7. Bruce ........................ (wear) black clothes when I ........................ (meet) him yesterday. 8. The sun ......................... (not shine) when I........................ (wake up) this morning. b) Consigne : prétérite simple : actif ou passif ? 1. Bruce ........................ (leave) school at 3:45 pm yesterday. 2. He and his best friend............ (drive) back home by his grandparents. 3. Mona Lisa........................ (paint) by Leonardo Da Vinci. 4. A.J Sax............ (invent) the saxophone. 5. J.K Rowling............ (create) Harry Potter. 6. Arthur Conan Doyle............ (die) of a heart attack. 7. ............ the American Conrinent really............ (discover) by Christopher Columbus ? 8. A new concert hall............ (build) last year.
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