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Plz post ur problem
Invisible math? Awesome, tag Zarkon now ...
I made a joke, dude :)
i didnt know
@Matlee, you can click "Ask Qualified Helpers" do be positive that you'll get the right answer. :) http://prntscr.com/9fjh0h
idk anytihng about areas of triangles
@jabez177 thank you
there are multiple formulas for the area of a triangle. You are probably familiar with A=1/2bh well in this case, we arbitrarily take one side to be b (call it b), and the h is determined from h=a sin(th)
You're welcome! :) That's if you have OwBucks. :)
so in this case you can use 1/2*5*7*sin(27) to get your area.
What your a qualified helper
o nvm u said a*b tho but i only have b and c do i still replace them
But it seems to me that @Inkyvoyd has it under control. :) Yes, I am, @Matlee. :P But I'm not good at Pre-calculus. Math isn't my thing. :P
@inkyvoyd do i always use sin?
yes... this formula is actually a specific application of the cross product of two vectors (the geometric definition), although i would not worry too much about that yet
Ok so when will i know to use herons formula
my teacher told me to use it for soem test review but i didnt know it
there are basically 3 formulas for the area of a triangle that are common. 1. A=1/2 bh you are probably familiar with this one. 2. A=1/2 a*b*sin(theta) this is the one we are using now 3. Heron's formula - this one is a bit long, but you need 3 side lengths to use heron's formula
Oh ok thank yo uthats very useful!
if you are given only 2 sides and an angle you will want to use 1/2 a*b*sin(theta) to make your life easier
but given 3 sides, it's easiest to use heron's formula.
do note that with trigonometry you can actually figure these things out without memorizing formulas, but the formulas make things a whole lot faster.
I will send your you owl bucks
I can't receive them :) thanks though :3
Yes i have sent you 1, alsoi got 7.944 is that good
Did u receive the 1
o.o thank you
:p your welcome! Thank you aswell
@Inkyvoyd, you should apply for the Qualified Helper role! :)