Challenge! Ready? the length of the hypotenuse of a 30 degrees-60 degrees-90 degrees triangle is 18. What is the perimeter?

- anonymous

- katieb

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- anonymous

This should be easy.

- wolf1728

In a 30 60 90 triangle, short side = hypotenuse / 2 and
the medium side = hypotenuse *sq root(3)/2
short side =9 and
medium side = 0.8660254038 * 18
= 15.5884572681
So add all 3 for perimeter
(info about 30 60 90 triangles here: http://www.1728.org/trig2.htm

- anonymous

Hint, this is going to be at the end.

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## More answers

- anonymous

|dw:1438068332061:dw|

- wolf1728

You need the perimeter right?

- hwyl

http://www.regentsprep.org/Regents/math/algtrig/ATT2/Ltri30.htm

- anonymous

Yes. You guys are doing it correctly.

- anonymous

This what it will look like. : __+__

- hwyl

+_+

- anonymous

|dw:1438068582550:dw|

- anonymous

What numbers go in the blanks?

- wolf1728

Okay we know the sides are 18 + 9 + 18*sq root(3) /2
or 18 + 9 + 9*sq root(3)

- anonymous

Ikr, it's fun.

- anonymous

Seriously who cares if I give them out? I can do whatever as a user. Like as if that picture is actually of you; you are prob. a guy.

- anonymous

So you and your fake pic. Look at me using the same judgmental logic.

- wolf1728

Lollygirl - you are here to get answers too aren't you?
:-)

- anonymous

For the last time, I am as innocent as a flower. Can I not have fun?

- wolf1728

Lollygirl do I get a medal?

- hwyl

challenge question, are you ready?
2+2 = 5

- anonymous

Lol.

- wolf1728

thanks :-)

- anonymous

You are doing really well, wolf, it is know wonder you have 94 for problem solving.

- wolf1728

thanks :-)

- hwyl

yw

- anonymous

You going to finish wolf? Or was all of that a waste of time?

- hwyl

we want to see you solve the challenge :)

- anonymous

I am sure you guys want the medal. Why are you here? You obviously are here just to be sarcastic.

- anonymous

He left? But he was doing so well....

- hwyl

lolly, let us do a probability/permutation/combinatronics challenge problem

- anonymous

Not yet.

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