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OpenStudy (anonymous):
Find the perimeter of a rectangular object which has a length of √180 feet and a width of √125 feet.
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OpenStudy (mathmagician):
\[P=10\sqrt{5}+12\sqrt{5}=22\sqrt{5}\]
Directrix (directrix):
= 72 √5 + 10√5 = 82√ 5 ---> perimeter
OpenStudy (mathmagician):
\[\sqrt{180}=\sqrt{6*6*5}=6\sqrt{5}\]
OpenStudy (mathmagician):
not \[36\sqrt{5}\]
Directrix (directrix):
Thanks.
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