Given the width and length of Teresa's new desktop computer, the length of the diagonal of the desktop screen is approximately 22.8 inches.
If a diagonal line cuts through a rectangle, it forms two equal right triangles. the side lengths of this triangle can be easily determined using Pythagoras theorem. Pythagoras theorem is expressed as;
c² = a² + b²
Where c is the hypotenuse or diagonal, a is base length and b is perpendicular height.
Given the data in the question;
We substitute into the equation above.
c² = a² + b²
c² = (18in)² + (14in)²
c² = 324in² + 196in²
c² = 520in²
c = √( 520in² )
c = 22.8in
Given the width and length of Teresa's new desktop computer, the length of the diagonal of the desktop screen is approximately 22.8 inches.
Learn more about Pythagorean theorem here: brainly.com/question/343682
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