Given the wide screen TV has the ration 16/9.

Then the ration for the length to the width = 16/9.

Let L be the length and W be the width.

==> L / w = 16/ 9.

But given the width = 25.2.

Then we will substitute.

==> L / 25.2 = 16/9.

Now we will cross multiply.

==.> L = 25.2*16/9

= 44.8

==> L = 44.8.

Now that we determine the width and the length of the TV, we will calculate the diagonal.

Then, D = sqrt( L^2 + w^2)

= sqrt( 44.8)^2 + ( 25.2)^2

= 51.40

**Then the diagonal is 51.40 **

## We’ll help your grades soar

Start your 48-hour free trial and unlock all the summaries, Q&A, and analyses you need to get better grades now.

- 30,000+ book summaries
- 20% study tools discount
- Ad-free content
- PDF downloads
- 300,000+ answers
- 5-star customer support

Already a member? Log in here.

Are you a teacher? Sign up now