Super fun geometry question

[Squideey]

How do I find the length of the pink side of this figure?

[Ad Bot]

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Law of cosines. I would solve it for you but I'm going to bed. Hopefully Google can help you.

Edit: typeo corrected

[Minnax]

SIN 51 = 19/x is the equation you are looking for, I think.
The answer is 28.348512247

[Tetris]

Pythagorean theorem

I forgot how to math though

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Pythagorean theorem

I forgot how to math though

had to log back in to address this. Since its not a right triangle the pythagorean theorem won't work... You might want to review the proof for it

[SeventhSandwich]

How do I find the length of the pink side of this figure?

Side A = Sqr(12^2 + 19^2 - 2(12)(19)(cos(99)))

Pythagorean theorem

I forgot how to math though

Not a right triangle.

SIN 51 = 19/x is the equation you are looking for

You don't know whether side CB is the hypotenuse or not.

[ChexGuy331]

sin51/19 = sin99/CB = sin30/12

You can use either sines or cosines here, since there's enough info for both. The answer is around 24-ish.

You don't know whether side CB is the hypotenuse or not.

it's opposite angle A, I think it's safe to assume the side opposite the widest angle is the hypotenuse.

[Tetris]

Estimation is always the answer

[Bahamut]

sin51/19 = sin99/CB = sin30/12

You can use either sines or cosines here, since there's enough info for both. The answer is around 24-ish.

it's opposite angle A, I think it's safe to assume the side opposite the widest angle is the hypotenuse.

so is this what high school is like?

not loooookin' forward to that

[ChexGuy331]

it's easier than it sounds. you get calculators anyway, no sane human would tell you to solve sines/cosines/tangents by hand.

I had a stuff trig teacher so I barely passed the final, but precalc is a breeze.

[Bahamut]

sweet, i hate confusing stuff so this'll be good

[ChexGuy331]

all I gotta say is, if you're having trouble with math in middle school, YOU SUCK

hell, I'm going to a technical college next year...I'll have to deal with REAL bullstuff math that probably won't make sense. high school is nothing.

[Bahamut]

math in middle school is pretty easy :D

[ravencroft]

I haven't done anything geometry related in 4 years.

[Little Anarchist]

had to log back in to address this. Since its not a right triangle the pythagorean theorem won't work... You might want to review the proof for it

You forgot comic sans ^_^