Question

O prisma patrulatera regulata are perimetrul bazei 32dm si muchia laterala 10dm.
a)aflati aria laterala
B)cati litri de apa incap in prisma?
C)daca prisma se umple cu apa si apoi se goleste in cuburi cu muchia de 2dm,de cate cuburi avem nevoie

Answer 1

Răspuns:

a)A.l.=P.b.•h=32•10=320 dm^2

b)P.b.=4L=32 =>L=8 dm

A.b.=8^2=64 dm^2

V=A.b.•h=64•10=640 dm^3 sau litri

c)V.cub.=l^3=8 dm^3

640:8=80 cuburi