Friday

December 19, 2014

December 19, 2014

Posted by **dani** on Monday, June 18, 2012 at 8:49pm.

- math -
**Steve**, Tuesday, June 19, 2012 at 5:07amat 9 ft, you have a 9-12-15 triangle.

at 6 ft, the ladder reaches to height h, where

6^2 + h^2 = 15^2

h = 13.75 ft

so, the ladder has moved up 1.75 ft

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