Homework Help: geometry

Posted by Piggy on Tuesday, May 8, 2012 at 12:52pm.

A 12-foot guy wire is to be attached to a tree at a 30 degree angle to the ground. At what height on the tree should the guy wire be attached? How far from the tree should the wire be attached to the ground?

geometry - Henry, Wednesday, May 9, 2012 at 8:46pm
a. We form a rt triangle:

A = 30 Deg. = Angle between hyp. and
hor. side.
Y = Ht. of guy wire attached to tree.
Z = hyp. = 12 Ft guy wire.

Y = 12*sin30 = 6 Ft.

b. X = 12*cos30 = 10.4 Ft.

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