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If the area of the triangle is 36cm2, what is the length, in cm, of leg xy. i missed class and i cant figure it out
 one year ago
 one year ago
If the area of the triangle is 36cm2, what is the length, in cm, of leg xy. i missed class and i cant figure it out
 one year ago
 one year ago

This Question is Closed

PhoenixFireBest ResponseYou've already chosen the best response.2
Leg xy is where? Can you draw a picture? What's the height of the triangle?
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
it doesnt give me one i can try and draw one
 one year ago

PhoenixFireBest ResponseYou've already chosen the best response.2
\[A={1 \over 2}bh\] dw:1354695650945:dw
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
dw:1354695794159:dw
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
thats what it gives me
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
XY is on the bottom by the way forgot to add all that
 one year ago

PhoenixFireBest ResponseYou've already chosen the best response.2
dw:1354695885781:dw
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
no it is not. all it gives me is the area which is 36cm2
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
i want to say its 12 but not sure
 one year ago

winterfezBest ResponseYou've already chosen the best response.0
since 36 is a perfect square.\[ \frac{ 1 }{ 2}(12)(6)=36cm^{2}\]
 one year ago

winterfezBest ResponseYou've already chosen the best response.0
the base has to be 12
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
thats what im thinking
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
it gives me 5 different answers to pick from 6,9,12,18,24
 one year ago

PhoenixFireBest ResponseYou've already chosen the best response.2
No. \[(0.5)(24)(3)=36\]
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
so your saying 24 would be the length of leg xy?
 one year ago

tamtoanBest ResponseYou've already chosen the best response.1
@winterfez, that's incorrect, since 72 = 36x2 = 9x8= 18x4 and so on.. , many possibilities , i think phoenixfire leads him on the right track, need more info on this to solve.
 one year ago

winterfezBest ResponseYou've already chosen the best response.0
well for this question you need to know either the height or the base
 one year ago

PhoenixFireBest ResponseYou've already chosen the best response.2
Could be a lot of different numbers. You're missing information.
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
i can take a picture of the diagram on my cell and upload it for you guys to see the diagram given to me
 one year ago

winterfezBest ResponseYou've already chosen the best response.0
\[\frac{ 1 }{ 2}bh=36cm ^{2}\] I don't think you can find from this equation. Like PhoenixFire point out you need to know 1 more information for either base or height
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
give me a few i will upload a photo with everything given to me
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
that is what they have given me to work with
 one year ago

PhoenixFireBest ResponseYou've already chosen the best response.2
Leg XY is twice as long as YZ. That's the info we needed. Let b=XY and h=2b \[A={1 \over 2}2b^2=b^2\]\[\sqrt{36}=b=6\] Your leg XY=6 and YZ=12
 one year ago

tamtoanBest ResponseYou've already chosen the best response.1
phoenixfire, you got the other way around :) XY is twice as long as YZ :)
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
sorry bout that. my bad. this is my first time using this site. i thought i mentioned it. but thank you very much PhoenixFire, tamotan, and winterfez.
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
so the length of leg xy is 24?
 one year ago

PhoenixFireBest ResponseYou've already chosen the best response.2
I see. b=2h h=YZ \[A={1 \over 2}2h^2=h^2\]\[h=\sqrt{36}=6\] \[b=2h=2(6)=12\] XY = 12
 one year ago

PhoenixFireBest ResponseYou've already chosen the best response.2
My bad for that mistake. haha, Thanks @tamtoan
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
alright so its 12 like i thought lol:) i was confused. normally im good at math. but missing class and then getting this confused me
 one year ago

tamtoanBest ResponseYou've already chosen the best response.1
np phoenixfire :) i made mistakes all the time :) sometimes it's too easy that we are careless, anyway, good night all, bed time for me :)
 one year ago

mattster9321Best ResponseYou've already chosen the best response.0
thank you both for helping me. i did become fans and i think gave a medal? but thanks alot!!!
 one year ago
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