The chord 3cm away is 12cm and chord 6cm away is 6cm.
The two perpendicular chords will create a rectangle with the center. each side will be half of the parallel sides length.
Half-life = [elapsed time * log (2)] / [log (begng amt / endg amt)]
half-life = (3 days * 0.30102999566) / log (1 / .58)
<span>half-life = 0.903089987 / log </span>
(<span>
<span>
<span>
1.724137931)
</span></span></span>half-life = <span>0.903089987 / 0.23657200643</span>
half-life =
<span>
<span>
<span>
3.8174 days
Source:
http://www.1728.org/halflife.htm
</span></span></span>
I think the answer is angles
N² - 14 + 48
n² + (-14 + 48)
n² + 28
