Răspuns:
[tex]\boldsymbol{ EC = \red{ 9 } \ u}[/tex]
[tex]\boldsymbol{ AD = \red{ 5 } \ u}[/tex]
[tex]\boldsymbol{ AE = \red{ \sqrt{13} } \ u}[/tex]
Explicație pas cu pas:
[tex]EC = |x_C - x_E| = |-5 - 4| = |-9| = 9 \ u[/tex]
[tex]AD = |x_D - x_A| = |-3-2| = |-5| = 5 \ u[/tex]
[tex]AE = \sqrt{2^2+3^2} = \sqrt{4 + 9} = \sqrt{13} \ u[/tex]
