anonymous
  • anonymous
A toddler’s playground has two slides on either side. The slide on the left is situated at a 45° angle to the ground and is 64 centimeters away from the base of the playground. The slide on the right is positioned at a 30° angle to the ground and is 106 centimeters away from the playground’s base. What is the total length of both slides on this playground rounded to the nearest tenth of a centimeter?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
anonymous
  • anonymous
i got lost in the middle of all this can someone help me out?
anonymous
  • anonymous
You can look up the features of the special triangles 30-60-90 and 45-45-90. What stage are you at?

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anonymous
  • anonymous
im on figuring out whether to use cosine or sine for the 30 degree angle triangle
anonymous
  • anonymous
No need to: http://zonalandeducation.com/mmts/miscellaneousMath/tri454590306090/tri454590306090.htm
anonymous
  • anonymous
These are special triangles where the sides are always proportional to the hypotenuse.
anonymous
  • anonymous
ok, so all i have to do is multiply .8660 to 106?
anonymous
  • anonymous
You actually have to divide it, .8660 is the same as h*.8660, because in that example h is 1. So, \[h=106/(\sqrt{3}/2)\] And the length of the other slide is \[h = 64\sqrt{2}\] Stick those in a calculator, and add them for your answer. Don't forget rounding or units ;)
anonymous
  • anonymous
oh ok, thanks, you just helped me out alot!!!!
anonymous
  • anonymous
No prob, memorize those proportions for your tests (it's easier than it looks) and you'll likely save tons of time

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