Răspunsuri

2014-07-21T08:57:06+03:00
D = l√2 deci
 latura= 2√2

aria= l²= (2√2)²= 8cm
4 3 4
Cel mai inteligent răspuns!
2014-07-21T10:21:29+03:00
Diagonala = l√2 ⇒ latura=  \frac{diagonala}{ \sqrt{2} } =  \frac{4}{ \sqrt{2} } = \frac{4 \sqrt{2} }{2} =2 \sqrt{2} (latura)

aria= l²
= (2√2)²
= 8
9 4 9