A computer system is advertised with a 14-inch monitor. The measurement of the monitor is along the diagonal of the screen. The height of the monitor screen is 9 inches. What is the width of the monitor screen?
To solve this problem we use the Pythagorean Theorem, shown here:
As you can see, we can solve the missing side of a right triangle using
In our problem, we have a diagonal (hypotenuse) of
In the Pythagorean Theorem, that means we have
So let's plug them into the formula:
Simplify by squaring:
Square root both sides:
Therefore, the width of the monitor screen is
Hope this helps!