You can put this solution on YOUR website!
measure the height of your computer monitor to the nearest tenth of a centimeter or sixteenth of of an inch.measure the width of your monitor as well.use the pythagorean theorem to find the length of the diagnal of the monitor.
Once you measure the height and width of your monitor use those measurements in the Pythagorean theorom;
a = the length
b = the width
so, for instance, mine would be;
24.8 would be the diagonal of my monitor.