Răspuns :
Răspuns:
Al=Pb*h
Pb=3*l=3*10=30 cm
Deci, Al=30*8=240 cm
At=Al+2*Ab
Ab=
[tex] {l}^{2} \times \frac{ \sqrt{ 3 } }{4} [/tex]
[tex] {10}^{2} \times \frac{ \sqrt{3} }{4} \\ 25 \sqrt{3 \: } [/tex]
At=
[tex]240 + 2 \times 25 \sqrt{3 } \\ 240 + 50 \sqrt{3} [/tex]
V=Ab*h=
[tex]25 \sqrt{3} \times 8 \\ 200 \sqrt{3} [/tex]