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In rectangle ABCD, diagonal AC is drawn. If CD=8 and AC=13, find m < ACD
 Mar 1, 2014
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DavisDude:

In rectangle ABCD, diagonal AC is drawn. If CD=8 and AC=13, find m < ACD



if you sketch the rectangle you will see that cos(ACD) = 8/13, so you should be able to determine angle ACD from this.
 Mar 1, 2014

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