Homework Help: math

Posted by shon on Friday, May 4, 2012 at 1:42pm.

if an 20ft ladder is leaned against a building and the bottom of the ladder forms a 30 degree angle with the ground how far up will the ladder reach

math - Steve, Friday, May 4, 2012 at 2:46pm
If the ladder reaches height h on the wall,

h/20 = sin 30 = 1/2
h=10

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