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January 28, 2015

January 28, 2015

Posted by **Jamilla** on Friday, April 9, 2010 at 3:54am.

The shorter diagonal is what in terms of cm?

The longer diagonal is what in terms of cm?

- Pre-calculus -
**Reiny**, Friday, April 9, 2010 at 7:58amUse cosine law

(shortone)^2 = 12^2 + 13^2 - 2(12)(13)cos50°

etc

for the longone, replace the end part with cos130°

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