Question

The size of a monitor is determined by the length of its diagonal. You want to buy a 19 inch monitor with a height of 11inches. What is the width of this monitor? Express your answer to the nearest tenth.XSubmINTL1217K

Answer 1

In this problem the diagonal of the Tv is 19 and the hight is 11 so we can use the pythagorical theorem to find the width (w) so:

`19^2=11^2+w^2`

and we solve for w so

`\begin{gathered} w^2=19^2-11^2 \\ w=\sqrt[]{361-121} \\ w=\sqrt[]{240} \\ w=15.5 \end{gathered}`