Lukecrayonz
  • Lukecrayonz
Find the area of the triangle: B=72.5 degreees, a=105, c=64
Mathematics
jamiebookeater
  • jamiebookeater
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amistre64
  • amistre64
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amistre64
  • amistre64
105 sin(72.5) = height and 64 is your base
amistre64
  • amistre64
areaTri = bh/2

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amistre64
  • amistre64
64 sin(72.5) is just as viable a height, and 105 a base so it really doesnt matter how you squish them up; just divide the results in half
Lukecrayonz
  • Lukecrayonz
So b=100~?
amistre64
  • amistre64
it says to find the area of the trianlge; if you wanna find b thats another story tho
amistre64
  • amistre64
i imagine the length of B is according to the law of cosines b^2 = a^2+c^2-2ac cos(72.5)
Lukecrayonz
  • Lukecrayonz
I'm just trying to find b so I can do herons formula.

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