riepilogo geometria solida
TRANSCRIPT
![Page 1: Riepilogo geometria solida](https://reader037.vdocuments.pub/reader037/viewer/2022100519/55c494bbbb61ebf60c8b484d/html5/thumbnails/1.jpg)
I solidiFormule e riepilogo
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La superficie di base
Si calcola l’area del poligono di base
Triangolo
Quadrato
RettangoloTrapezioParallelogramma
Rombo
poligono regolare (pentagono, esagono…)Cerchio
b ⋅h2
l2
b ⋅hb ⋅h B + b( ) ⋅h
2 D ⋅d( )2
ϕ ⋅ l2 = p ⋅a2
πr2
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La superficie laterale
Si calcolano le aree di tutte le facce e si sommano
Prismi e cilindri Piramidi e coni
p ⋅h p ⋅h2Sfera
4πr2
![Page 4: Riepilogo geometria solida](https://reader037.vdocuments.pub/reader037/viewer/2022100519/55c494bbbb61ebf60c8b484d/html5/thumbnails/4.jpg)
Riepilogo dei perimetri
Triangolo
Quadrato
RettangoloTrapezioParallelogramma
Rombo
poligono regolare di n lati
(pentagono, esagono…)
l1 + l2 + l3
2 b + h( )B + b + lobliquo1 + lobliquo2
2πr
2 b + h( )
4l
4l
n ⋅ l
Cerchio
![Page 5: Riepilogo geometria solida](https://reader037.vdocuments.pub/reader037/viewer/2022100519/55c494bbbb61ebf60c8b484d/html5/thumbnails/5.jpg)
I VolumiPrismi e cilindri Piramidi e coni
Sb ⋅h Sb ⋅h3
Sfera
43πr3
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I solidi platoniciCalcoliamo il volume moltiplicando il lato al cubo per un
numero fisso
V = 0,117 ⋅ l 3 V = l 3 V = 0,471⋅ l 3 V = 7,663⋅ l 3 V = 2,182 ⋅ l 3