Răspuns:
[tex](a) \boldsymbol{ \red{BC = 5 \ cm}}, (b) \boldsymbol{ \red{AB = 20 \ cm}}, (c) \boldsymbol{ \red{AC = 35 \ cm}}[/tex]
Explicație pas cu pas:
Teorema lui Pitagora
[tex]BC = \sqrt{AB^2+AC^2} = \sqrt{3^2+4^2} = \sqrt{9+16} = \sqrt{25} = 5 \ cm[/tex]
[tex]AB = \sqrt{BC^2-AC^2} = \sqrt{29^2-21^2} = \sqrt{841-441} = \sqrt{400} = 20 \ cm[/tex]
[tex]AC = \sqrt{BC^2-AB^2} = \sqrt{37^2-12^2} = \sqrt{1369-144} = \sqrt{1225} = 35 \ cm[/tex]
