A 16 -inch laptop has a screen that is 7 inches tall. How wide is the screen?

The width of the laptop screen is x = 14.3inches.

Given that,

A 16 inch laptop has a screen that is 7 inches tall.

We have to determine,

How wide is the screen.

According to the question,

 Diagonal length of the laptop = 16 inches

Length of the laptop = 7 inches

Width of the laptop = x inches

By using Pythagoras theorem,

Hence, The width of the laptop screen is x = 14.3inches.

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Approximately 14.4 inches

Step-by-step explanation:

A 16-inch laptop means that a diagonal across the screen is 16 inches.

Imagine that the laptop is a triangle, with 2 sides: the height and the width of screen, and a hypotenuse, the diagonal across the screen (see attached image).

Here, we can use the Pythagorean theorem to find the width.

The relationship is the following

We can rearrange this to find the width of the screen:

Let's put in our values for the diagonal and the height:

Diagonal = 16

Height = 7

As we can see, the width of our laptop is around 14.4 inches.

approximately 14.4 inches

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