<p>The lower edge of a painting, 10 ft in height, is 2 ft above an observer's eye level. Assuming that the best view is obtained when the angle subtended at the observer's eye by the painting is maximum, how far from the wall should the observer stand?</p>
<p>There is a long explanation of this at the link below… This problem seems to come up alot.</p>
<p><a href=“http://ns.comap.com/www.comap.com/pdf/872/GC86.pdf[/url]”>http://ns.comap.com/www.comap.com/pdf/872/GC86.pdf</a></p>