Răspuns :
h=l√6/3⇒l=10×3/√6⇒l=5√6
Aria bazei=l²√3/2⇒
⇒Aria Bazei=5√6×√3/2
⇒Aria Bazei=5√18/2
⇒Aria Bazei=5×3√2/2
⇒Aria Bazei=15√2/2
Aria bazei=l²√3/2⇒
⇒Aria Bazei=5√6×√3/2
⇒Aria Bazei=5√18/2
⇒Aria Bazei=5×3√2/2
⇒Aria Bazei=15√2/2