Question

1) daca un triunghi dreptunghic are lungimile catetelor egale cu 3, respectiv 4 cm, atunci lungimea ipotenuzei este...?

Answer 1

   
[tex]\displaystyle\\ i_p = \sqrt{c_1^2 + c_2^2} = \sqrt{3^2 + 4^2} =\sqrt{9 + 16} =\sqrt{25} =\boxed{\bf 5~cm}[/tex]