If a side-length of an equilateral triangle is 18, which is its area?

Question

anonymous · Answer

do ure own work

anonymous · Answer

Sorry but Im a little confused the answers are.
A.81
B.72
C.81sqrt(2
D.81sqrt(3

2bornot2b · Answer

$$1/2\times 6\times 6.sin(\frac{\pi}{3})$$

2bornot2b · Answer

Have you learnt trigonometry?

anonymous · Answer

Yes

anonymous · Answer

I come up with .3288

2bornot2b · Answer

I hope you know then that $$sin\frac{\pi}{3}=\frac{\sqrt3}{2}$$

anonymous · Answer

$$81\sqrt{3}$$

farmdawgnation · Answer

Austin Todd, you're more than welcome to try and draw more information out of the asker - in fact we encourage that. But whatever you do, please be polite. Thanks!

anonymous · Answer

I was just kidding with him, he's my bestfriend and we're both in the same geometry class, and we both needed help, and I'm actually the one who showed him this website. Ask him for yourself. I was just messing around with him.