Question

The size of rectangular television screen is given as the length of the diagonal of the screen. Find the size of a television screen that has a height of 38.4 inches and width of 28.8inches

Answer 1

The size of a television screen is
`48\ in`

Explanation:

Let

x-----> the length of the diagonal of the screen

we know that

Applying the Pythagoras Theorem

`x^(2)=H^(2)+W^(2)`

we have

`H=38.4\ in`

`W=28.8\ in`

substitute the values

`x^(2)=38.4^(2)+28.8^(2)`

`x^(2)=2,304`

`x=48\ in`