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anonymous
 one year ago
A flagpole 4 m tall stands on a sloping roof. A support 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?
anonymous
 one year ago
A flagpole 4 m tall stands on a sloping roof. A support 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?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i've tried but i really have no idea what it's saying

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2It is a bit ambiguous but lets try and make sense of it whatever we can, start by drawing a roof

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436236697787:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436236736659:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436236818328:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2does that make sense or do you think we are off

Miracrown
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436237277123:dw

Miracrown
 one year ago
Best ResponseYou've already chosen the best response.2I am a bit confused by the problem. It says there is a 4m pole on top of a roof. Then it says a wire joins the top of a support wire 5m long joins the top of the pole to a point on the roof 6m up from the bottom of the pole. That is where I get confused...

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2poorly phrased question haha

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sorry my internet cut out let me work thorough what y'all just posted

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hmm ok so using @ganeshie8 drawing dw:1436237283112:dw (sorry about my terrible digital art :P) would i be solving for that angle?

Miracrown
 one year ago
Best ResponseYou've already chosen the best response.2I don't think that's how I saw it ...

Miracrown
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436238040201:dw

Miracrown
 one year ago
Best ResponseYou've already chosen the best response.2All in all its still not making any sense =/

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436238176817:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2They want that angle, I think

Miracrown
 one year ago
Best ResponseYou've already chosen the best response.2The way the problem is set up, it looks like the creator was expecting you to use Law of Cosines

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok those drawings make sense..but what do i plug into the law of cosines to find the roof angle?

Miracrown
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436239234310:dw

Miracrown
 one year ago
Best ResponseYou've already chosen the best response.2So this is what I'm seeing here: a point on the roof 6m "up" from the bottom of the pole can mean two things.. it can mean the triangle you showed me with the angle between 4 and 6 dw:1436239558073:dw or it can be interpreted as the picture I just drawn  the point is 6m up vertically Which makes the problem harder to solve, of course, but easy doesn't always mean correct. The triangle you presented to me will probably be what most students are going to try. in the case of the first triangle remember that the law of Cosines is: c^2 = a^2 + b^2  2ab cos C so in the first triangle, which is what many people will try the side opposite to the angle you are trying to solve for is c and the other two sides are a and b using the law of Cosines, you should be able to solve for the angle Θ, which is "C"

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok thank you! i have to go right now but i'll work it out. thanks so much
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