Answer:
[tex]d=17.69\ \text{inches}[/tex]
Step-by-step explanation:
Given that,
The length of a television, l = 13 inches
Width of the television, b = 12 cm
We ned to find the diagonal of the television. Let the diagonal be d. We can find it using Pythagoras theorem,
[tex]d^2=l^2+b^2\\\\d=\sqrt{13^2+12^2} \\\\d=17.69\ \text{inches}[/tex]
So, the diagonal of the television is [tex]17.69\ \text{inches}[/tex].