Question

The diagonal across a computer screen is 19 in if the screen is 10 in tall what is the width

Answer 1

Let us use a diagram to illustrate your question.

From the diagram above we can use pythagora's theorem to look for the width.Therefore,

$\begin{gathered} w^2=19^2-10^2 \\ w^2=361-100 \\ w^2=261 \\ w=\sqrt[]{261} \\ w=16.1554944214 \\ \text{width}\approx16.16\text{ inches} \end{gathered}$