Question

O prisma dreapta are baza un triunghi echilateral de latura 12 cm si inaltimea de 10 cm.Aflati volumul prismei.

Answer 1

V=Ab*h/3
Ab=$l^{2}$$\sqrt{3}$/4
Ab=$12^{2}$*$\sqrt{3}$/4
Ab=144*$\sqrt{3}$/4
Ab=36$\sqrt{3}$ cm patrati
V=36$\sqrt{3}$/*10/3
V=120$\sqrt{3}$ cm cubi

Answer 2

Ab=l^2√3/4=12^2√3/4
Ab=144√3/4=36√3 cm^2
V=Ab•h<=>V=36√3•10=360√3 cm^3