Answer:
[tex]135cm[/tex]
Step-by-step explanation:
We can use pythagoras' theorem to solve this.
[tex]a^{2} +b^{2} =c^{2}[/tex]
let a be the long of the rectangle: a=120 cm
let b be the tall of the rectangle: b=62 cm
and c be the diagonal c=?
[tex]a^{2} +b^{2} =c^{2}\\120^{2} +62^{2} =c^{2} \\c^{2} =14400+3844\\c^{2} =18244\\c=\sqrt{18244}\\c=135cm[/tex]
the length of the diagonal is 135cm
