anonymous
  • anonymous
theres a square connected to a 30-60-90 triangle by the short leg, the diagonal of the square is 20. How do you find the short leg
Mathematics
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1327039085619:dw| looks like this
dumbcow
  • dumbcow
well the triangle is irrelevant in this case. if i know the diagonal of the square i can find its sides Let x be length of side of square: x^2 + x^2 = 20^2 2x^2 = 400 x^2 = 200 x = sqrt(200) = 10sqrt(2)
anonymous
  • anonymous
so the sides of the square are 10?

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dumbcow
  • dumbcow
?? No, its using pythagorean theorem a^2 +b^2 = c^2 x = 10sqrt(2)
anonymous
  • anonymous
ok then 10 is x ?
dumbcow
  • dumbcow
x = 10sqrt(2)
anonymous
  • anonymous
ok so 10 radical 2?
dumbcow
  • dumbcow
:)
anonymous
  • anonymous
THANK U!!!

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