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|dw:1358502234947:dw|

??

the sides wont all meet

How about 10cm,12cm,20cm? @UnkleRhaukus

How about the second one... im not sure howt o do the formula though.. @PhoenixFire

Try construction

It isn't possible. thats what i got.

10+12=22 > 20 <---- true
10+20=30 > 12 <---- true
12+20=32 > 10 <---- true
The triangle is VALID.

I dont understand though.

haha. No problems.

I have 2 more questions that i need help on, do you mind giving me a hand? @PhoenixFire

sure.

Triangle PQR has medians QM and PN that intersect at Z. if Zm=4, what is QZ and QM. @PhoenixFire

It's a property of medians and centroids I believe. I'm not 100% certain on this.

Thats what i was thinking too. that it was half of that. so whats QZ and QM then?

QZ=8 and QM=12 is this right?

Yes

okay i have one more.... this one is hard i think lol

|dw:1358428925101:dw| @PhoenixFire

find X?

Yes, sorry.

you there? @phoenixfire

Thinking. Sorry. :P

Its okay.

I'm guessing the 2x line goes between midpoints of those sides?

Yeah

Thank you!!!!

No problem. :)