Question

34A Blipco television has a rectangular screen with a diagonal measurement of 25 inches. If the screenhas a height of 15 inches, what is the width of the screen?

Answer 1

Let's quickly draw the television screen

We'll focus on the following triangle, in which we can use Pythagoras's theorem to calculate the lenght of the missing side

We know

$hyp^2^{}=b^2+h^2$

Where b and h are the sides that form the right angle. In this case

$625=b^2+225$$b^2=400$$b=20$

And so, the width of the screen is 20 inches.