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kalacefeng
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a ladder leaning against a wall makes a 60 degree angle with the ground. The base of the ladder is 4 M from the building. How high above the ground is the top of the ladder
kalacefeng
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Can someone teach me how to find this out.
CalebBeavers
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Can you try to draw it?
kalacefeng
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Im confused. can you help me step by step please
CalebBeavers
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|dw:1357266710840:dw|
kalacefeng
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so what do i do next
kalacefeng
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is this the final answer
CalebBeavers
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No, do you know tangent?
kalacefeng
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nope
kalacefeng
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can you teach me
CalebBeavers
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Tangent of an angle = the opposite side/the adjacent side
kalacefeng
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so it will be
kalacefeng
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240?
kalacefeng
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is it 7?
CalebBeavers
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Yes it is 7 if you round
kalacefeng
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4. A regular hexagon is composed of 12 congruent 30 -60 -90 triangles. If the length of the hypotenuse of one of those triangles is 18 3 , find the perimeter of the hexagon.
jojomojo
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|dw:1357267018179:dw|
Homeworksucks
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Can't you just use a form of the pythagorean thereom instead of trigonometry- a\[a ^{2}+b ^{2}=c ^{2}\] and rearrange for \[a ^{2}-c ^{2}=b ^{^{2}}\]?
kalacefeng
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ok and the final answer is
Homeworksucks
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oh wait nvm I thought that was a side not an angle
kalacefeng
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yah can u help me find the final please
Homeworksucks
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working on it
Homeworksucks
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is that a 183 or 18.3
Homeworksucks
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9 if it is 18 you typed, 9.15 if you typed 18.3, and 91.5 if you typed 183 -Final answer.