Question

rezolvarea cu TEOREMA LUI PITAGORA
+poza
Aflati latura unui patrat a carui diagonala are √72 cm.

Answer 1

Daca faci un patrat ABCD ,duci diagonala AC 
conform Pitagora ai
AC²=AB²+BC²
dae ele sunt egale⇒AC²=2AB² ⇒(√72)²=2AB²
AB²=72:2=36
AB=6 cm

Answer 2

d=a√2⇒√72=a√2⇒a=√72/√2=√36=6 cm
sau dupa Pitagora
a²+a²=d²⇒2a²=72⇒a²=36⇒a=6 cm