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That is of course the right answer, but there's a much simpler way to arrive at it. It's a 4:3 aspect ratio screen, and is, therefore, a 3:4:5 right-angled triangle. You know the diagonal is 13.3", so:
Width = 13.3 x 3/5 = 8"
Height = 13.3 x 4/5 = 10.6"
QED.
Last edited by HarryT; 04-22-2016 at 03:09 PM.
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