nancylagunas805
08.09.2021 •
Mathematics
Alexandra a cumparat 4 caiete de matematica,pentru a plati 20 de lei cat va plati mihai pentru 3 caiete de acelasi fel?
rezolvare:
se scriu datele problemei altfel:
4 caiete20 lei
1 caiet20:4=5(lei)
3 caiete3•5=15(lei)
deci mihai va plati 15 lei pentru 3 caiete.
observatie: numărul caietelor ,,a crescut" sau ,,a scazut" de acelasi număr de ori
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Ответ:
answer:
triangle
step-by-step explanation:
i'm assuming you mean vertical cross section,
if that's the case, if you slice the pyramid symmetrically down the vertex and vertically in any plane, you should get a cross section with 3 straight sides ( which by definition is a triangle)