Question

Ce lungime are diagonala unui cub cu muchia de 3 radical din 3 ???

Answer 1

Se cunoaste formula:
$d = a \sqrt{3}$
unde a este muchia cubului
In cazul acesta:
$d = 3 \sqrt{3} \sqrt{3} = 3 \times 3 = 9$

Answer 2

Formula diagonalei in cub:
d=latura radical 3
d=3 radical 3• radical 3
d=3•3=9
(radical 3•radical 3= 3)