SOLUTION: A flagpole 4 m tall stands on a sloping roof. A siupport wire 5 m long joins the top of the pole to a point on the roof 6 m up from the bottom of the pole. At what angle is the roo

Question 43952: A flagpole 4 m tall stands on a sloping roof. A siupport wire 5 m long joins the top of the pole to a point on the roof 6 m up from the bottom of the pole. At what angle is the roof inclined to the horizontal?
Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
From law of cosine:
Let x be the unknown angle
EQUATION:

25=52-48cos(x)
-25=-48cos(x)
x=55.8
Hence, the anlge is 55.8 degrees
PAul.
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