anonymous
  • anonymous
HELP. Metal!! 10 points!!!! Find the area of ABC. Round your answer to the nearest tenth. measure A=23, measure C=39 and b = 14.6
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@welshfella @misty1212 @ anyone pls !!
anonymous
  • anonymous
im sorry:( i wish i could help. i suck at math. I can give you a medal though
anonymous
  • anonymous
was offering it as a reward to whoeverhelped, but thank you!

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anonymous
  • anonymous
haha oops. still i can give you one can you help me with my question?
anonymous
  • anonymous
will totally try, however im reaaaaaally bad a math ):
anonymous
  • anonymous
same. i wish i could help you. hope you get help
welshfella
  • welshfella
|dw:1436980005424:dw|
anonymous
  • anonymous
how do i find the base/height? @welshfella
welshfella
  • welshfella
well you can find the length of a using the Sine Law then theres a formula for the area in terms of 2 sides and the sine of the included angle
welshfella
  • welshfella
a sine 23 = 14.6 / sine B B = 180 - (39+23)
welshfella
  • welshfella
* a / sin 23
anonymous
  • anonymous
118?
welshfella
  • welshfella
thats angle B yea
anonymous
  • anonymous
what now?
welshfella
  • welshfella
well find the length of a using the sine rule as above
welshfella
  • welshfella
a / sin 23 = 14.6 / sin 118 solve for a
welshfella
  • welshfella
then Area = 0.5 * a*b sin C
anonymous
  • anonymous
@welshfella i got 6.46
welshfella
  • welshfella
ok so plug a = 6.46 b = 14.6 and C = 39 in the formula for the area and you have ur answer
welshfella
  • welshfella
6.46 is correct for a
anonymous
  • anonymous
1/2 base x height?
anonymous
  • anonymous
how do i get height?
welshfella
  • welshfella
NO - use the formula i posted 5 posts back
anonymous
  • anonymous
a sine 23 = 14.6 / sine B B = 180 - (39+23)
welshfella
  • welshfella
Area = 0.5ab cos
anonymous
  • anonymous
sorry, i am confused. i really need things written out
welshfella
  • welshfella
*cos C
welshfella
  • welshfella
Area = 0.5 * a*b*cos C
anonymous
  • anonymous
36.6! ..?
anonymous
  • anonymous
thats not right
welshfella
  • welshfella
0.5 *6.46*14.6*sin 39 oh sorry its sin 39 not cos 39
welshfella
  • welshfella
that's 29.68
anonymous
  • anonymous
thank you so much!!
welshfella
  • welshfella
yw

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