Posted by **Anonymous** on Saturday, April 2, 2011 at 6:04pm.

The scale factor of two similar triangles is 2/5. if the perimeter of the small triangles is 80 cm, what is the perimeter of the large triangle?

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**bobpursley**, Saturday, April 2, 2011 at 6:51pm
2/5=80/P

P=5*80/2

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