anonymous
  • anonymous
k = ?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
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anonymous
  • anonymous
I need to go but can u wait for me in here
dumbcow
  • dumbcow
ill be back, i gotta go too

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anonymous
  • anonymous
Hi Hikari - this looks quite tricky at first, but can you see how to calculate the angle marked in red? Hint: exterior angle of the smaller right angled triangle equals the angle marked in red plus 90 degrees.
anonymous
  • anonymous
hey dumbcow, can you explain guyc hint about the exterior angle?
anonymous
  • anonymous
I'm back
dumbcow
  • dumbcow
ok back, this is a 30-60-90 right triangle so the upper angle is 60 have you learned sin and cos functions ??
anonymous
  • anonymous
no
dumbcow
  • dumbcow
wait never mind, a 30-60-90 triangle is a special triangle with ratio 1:sqrt(3):2 for our triangle 9:9sqrt(3):18 therefore k + 3sqrt(3) = 9sqrt(3) k = 6sqrt(3)
anonymous
  • anonymous
so702=6sq3
dumbcow
  • dumbcow
k = 6sq(3) what is 702?
anonymous
  • anonymous
idk why
anonymous
  • anonymous
i got k + 27=729
dumbcow
  • dumbcow
how?
anonymous
  • anonymous
3 time 3 time 3=27 9X9X9=729
dumbcow
  • dumbcow
a 30-60-90 triangle is a special triangle with ratio 1:sqrt(3):2 for our triangle 9:9sqrt(3):18 therefore k + 3sqrt(3) = 9sqrt(3) k = 6sqrt(3) sqrt = square root why are you multiplying 3*3*3 and 9*9*9
anonymous
  • anonymous
i am sorry that i got myself confuse
dumbcow
  • dumbcow
thats alright its hard to explain without drawing it out
anonymous
  • anonymous
yea
dumbcow
  • dumbcow
1:sqrt(3):2 means vertical side length is 1 bottom side length is sqrt(3) hypotenuse or diagonal side is 2 because for our triangle the vertical side is 9 9 is our scale factor multiply everything by 9 9:9sq3:18 bottom side is 9sq3 diagonal is 18
anonymous
  • anonymous
i am confuse now
dumbcow
  • dumbcow
sorry answer is k = 6sqrt(3) i'll try to scan in a picture later
anonymous
  • anonymous
that's aok can help me with other questions
dumbcow
  • dumbcow
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anonymous
  • anonymous
i saw it already and i got it

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